collections/COPYING

    Creative Commons Attribution-ShareAlike 4.0 International Public License

By exercising the Licensed Rights (defined below), You accept and agree to be
bound by the terms and conditions of this Creative Commons
Attribution-ShareAlike 4.0 International Public License ("Public License"). To
the extent this Public License may be interpreted as a contract, You are granted
the Licensed Rights in consideration of Your acceptance of these terms and
conditions, and the Licensor grants You such rights in consideration of benefits
the Licensor receives from making the Licensed Material available under these
terms and conditions.

Section 1 – Definitions.

        a. Adapted Material means material subject to Copyright and Similar
           Rights that is derived from or based upon the Licensed Material and
           in which the Licensed Material is translated, altered, arranged,
           transformed, or otherwise modified  in a manner requiring permission
           under the Copyright and Similar Rights held by the Licensor. For
           purposes of this Public License, where the Licensed Material is a
           musical work, performance, or sound recording, Adapted Material is
           always produced where the Licensed Material is synched in timed
           relation with a moving image.
        b. Adapter's License means the license You apply to Your Copyright and
           Similar Rights in Your contributions to Adapted Material in
           accordance with the terms and conditions of this Public License.
        c. BY-SA Compatible License means a license listed at
           creativecommons.org/compatiblelicenses, approved by Creative Commons
           as essentially the equivalent of this Public License.
        d. Copyright and Similar Rights means copyright and/or similar rights
           closely related to copyright including, without limitation,
           performance, broadcast, sound recording, and Sui Generis Database
           Rights, without regard to how the rights are labeled or categorized.
           For purposes of this Public License, the rights specified in Section
           2(b)(1)-(2) are not Copyright and Similar Rights.
        e. Effective Technological Measures means those measures that, in the
           absence of proper authority, may not be circumvented under laws
           fulfilling obligations under Article 11 of the WIPO Copyright Treaty
           adopted on December 20, 1996, and/or similar
           international agreements.
        f. Exceptions and Limitations means fair use, fair dealing, and/or any
           other exception or limitation to Copyright and Similar Rights that
           applies to Your use of the Licensed Material.
        g. License Elements means the license attributes listed in the name of a
           Creative Commons Public License. The License Elements of this Public
           License are Attribution and ShareAlike.
        h. Licensed Material means the artistic or literary work, database, or
           other material to which the Licensor applied this Public License.
        i. Licensed Rights means the rights granted to You subject to the terms
           and conditions of this Public License, which are limited to all
           Copyright and Similar Rights that apply to Your use of the Licensed
           Material and that the Licensor has authority to license.
        j. Licensor means the individual(s) or entity(ies) granting rights under
           this Public License.
        k. Share means to provide material to the public by any means or process
           that requires permission under the Licensed Rights, such as
           reproduction, public display, public performance, distribution,
           dissemination, communication, or importation, and to make material
           available to the public including in ways that members of the public
           may access the material from a place and at a time individually
           chosen by them.
        l. Sui Generis Database Rights means rights other than copyright
           resulting from Directive 96/9/EC of the European Parliament and of
           the Council of 11 March 1996 on the legal protection of databases, as
           amended and/or succeeded, as well as other essentially equivalent
           rights anywhere in the world.
        m. You means the individual or entity exercising the Licensed Rights
           under this Public License. Your has a corresponding meaning.

Section 2 – Scope.

        a. License grant.
                1. Subject to the terms and conditions of this Public License,
                   the Licensor hereby grants You a worldwide, royalty-free,
                   non-sublicensable, non-exclusive, irrevocable license to
                   exercise the Licensed Rights in the Licensed Material to:
                        A. reproduce and Share the Licensed Material, in whole
                           or in part; and produce, reproduce, and Share
                           Adapted Material.
                2. Exceptions and Limitations. For the avoidance of doubt,
                   where Exceptions and Limitations apply to Your use, this
                   Public License does not apply, and You do not need to comply
                   with its terms and conditions.
                3. Term. The term of this Public License is specified in
                   Section 6(a).
                4. Media and formats; technical modifications allowed. The
                   Licensor authorizes You to exercise the Licensed Rights in
                   all media and formats whether now known or hereafter created,
                   and to make technical modifications necessary to do so. The
                   Licensor waives and/or agrees not to assert any right or
                   authority to forbid You from making technical modifications
                   necessary to exercise the Licensed Rights, including
                   technical modifications necessary to circumvent Effective
                   Technological Measures. For purposes of this Public License,
                   simply making modifications authorized by this Section
                   2(a)(4) never produces Adapted Material.
                5. Downstream recipients.
                        A. Offer from the Licensor – Licensed Material. Every
                           recipient of the Licensed Material automatically
                           receives an offer from the Licensor to exercise the
                           Licensed Rights under the terms and conditions of
                           this Public License.
                        B. Additional offer from the Licensor – Adapted
                           Material. Every recipient of Adapted Material from
                           You automatically receives an offer from the Licensor
                           to exercise the Licensed Rights in the Adapted
                           Material under the conditions of the Adapter's
                           License You apply.
                        C. No downstream restrictions. You may not offer or
                           impose any additional or different terms or
                           conditions on, or apply any Effective Technological
                           Measures to, the Licensed Material if doing so
                           restricts exercise of the Licensed Rights by any
                           recipient of the Licensed Material.
                6. No endorsement. Nothing in this Public License constitutes or
                   may be construed as permission to assert or imply that You
                   are, or that Your use of the Licensed Material is, connected
                   with, or sponsored, endorsed, or granted official status by,
                   the Licensor or others designated to receive attribution as
                   provided in Section 3(a)(1)(A)(i).
        b. Other rights.
                1. Moral rights, such as the right of integrity, are not
                   licensed under this Public License, nor are publicity,
                   privacy, and/or other similar personality rights; however, to
                   the extent possible, the Licensor waives and/or agrees not to
                   assert any such rights held by the Licensor to the limited
                   extent necessary to allow You to exercise the Licensed
                   Rights, but not otherwise.
                2. Patent and trademark rights are not licensed under this
                   Public License.
                3. To the extent possible, the Licensor waives any right to
                collect royalties from You for the exercise of the Licensed
                Rights, whether directly or through a collecting society under
                any voluntary or waivable statutory or compulsory licensing
                scheme. In all other cases the Licensor expressly reserves any
                right to collect such royalties.

Section 3 – License Conditions.

Your exercise of the Licensed Rights is expressly made subject to the following
conditions.

        a. Attribution.
                1. If You Share the Licensed Material (including in modified
                   form), You must:
                        A. retain the following if it is supplied by the
                           Licensor with the Licensed Material:
                                i. identification of the creator(s) of the
                                   Licensed Material and any others designated
                                   to receive attribution, in any reasonable
                                   manner requested by the Licensor (including
                                   by pseudonym if designated);
                               ii. a copyright notice;
                              iii. a notice that refers to this Public License;
                               iv. a notice that refers to the disclaimer of
                                   warranties;
                                v. a URI or hyperlink to the Licensed Material
                                   to the extent reasonably practicable;
                        B. indicate if You modified the Licensed Material and
                           retain an indication of any previous
                           modifications; and
                        C. indicate the Licensed Material is licensed under this
                           Public License, and include the text of, or the URI
                           or hyperlink to, this Public License.
                2. You may satisfy the conditions in Section 3(a)(1) in any
                   reasonable manner based on the medium, means, and context in
                   which You Share the Licensed Material. For example, it may be
                   reasonable to satisfy the conditions by providing a URI or
                   hyperlink to a resource that includes the
                   required information.
                3. If requested by the Licensor, You must remove any of the
                   information required by Section 3(a)(1)(A) to the extent
                   reasonably practicable.
        b. ShareAlike.
           In addition to the conditions in Section 3(a), if You Share Adapted
           Material You produce, the following conditions also apply.
                1. The Adapter's License You apply must be a Creative Commons
                   license with the same License Elements, this version or
                   later, or a BY-SA Compatible License.
                2. You must include the text of, or the URI or hyperlink to, the
                   Adapter's License You apply. You may satisfy this condition
                   in any reasonable manner based on the medium, means, and
                   context in which You Share Adapted Material.
                3. You may not offer or impose any additional or different terms
                   or conditions on, or apply any Effective Technological
                   Measures to, Adapted Material that restrict exercise of the
                   rights granted under the Adapter's License You apply.

Section 4 – Sui Generis Database Rights.

Where the Licensed Rights include Sui Generis Database Rights that apply to Your
use of the Licensed Material:

        a. for the avoidance of doubt, Section 2(a)(1) grants You the right to
           extract, reuse, reproduce, and Share all or a substantial portion of
           the contents of the database;
        b. if You include all or a substantial portion of the database contents
           in a database in which You have Sui Generis Database Rights, then the
           database in which You have Sui Generis Database Rights (but not its
           individual contents) is Adapted Material, including for purposes of
           Section 3(b); and
        c. You must comply with the conditions in Section 3(a) if You Share all
           or a substantial portion of the contents of the database.

For the avoidance of doubt, this Section 4 supplements and does not replace Your
obligations under this Public License where the Licensed Rights include other
Copyright and Similar Rights.

Section 5 – Disclaimer of Warranties and Limitation of Liability.

        a. Unless otherwise separately undertaken by the Licensor, to the extent
           possible, the Licensor offers the Licensed Material as-is and as-
           available, and makes no representations or warranties of any kind
           concerning the Licensed Material, whether express, implied,
           statutory, or other. This includes, without limitation, warranties of
           title, merchantability, fitness for a particular purpose, non-
           infringement, absence of latent or other defects, accuracy, or the
           presence or absence of errors, whether or not known or discoverable.
           Where disclaimers of warranties are not allowed in full or in part,
           this disclaimer may not apply to You.
        b. To the extent possible, in no event will the Licensor be liable to
           You on any legal theory (including, without limitation, negligence)
           or otherwise for any direct, special, indirect, incidental,
           consequential, punitive, exemplary, or other losses, costs, expenses,
           or damages arising out of this Public License or use of the Licensed
           Material, even if the Licensor has been advised of the possibility of
           such losses, costs, expenses, or damages. Where a limitation of
           liability is not allowed in full or in part, this limitation may not
           apply to You.
        c. The disclaimer of warranties and limitation of liability provided
           above shall be interpreted in a manner that, to the extent possible,
           most closely approximates an absolute disclaimer and waiver of
           all liability.

Section 6 – Term and Termination.

        a. This Public License applies for the term of the Copyright and Similar
           Rights licensed here. However, if You fail to comply with this Public
           License, then Your rights under this Public License
           terminate automatically.
        b. Where Your right to use the Licensed Material has terminated under
           Section 6(a), it reinstates:
                1. automatically as of the date the violation is cured, provided
                it is cured within 30 days of Your discovery of the violation;
                or upon express reinstatement by the Licensor.
           For the avoidance of doubt, this Section 6(b) does not affect any
           right the Licensor may have to seek remedies for Your violations of
           this Public License.
        c. For the avoidance of doubt, the Licensor may also offer the Licensed
           Material under separate terms or conditions or stop distributing the
           Licensed Material at any time; however, doing so will not terminate
           this Public License.
        d. Sections 1, 5, 6, 7, and 8 survive termination of this
           Public License.

Section 7 – Other Terms and Conditions.

        a. The Licensor shall not be bound by any additional or different terms
           or conditions communicated by You unless expressly agreed.
        b. Any arrangements, understandings, or agreements regarding the
           Licensed Material not stated herein are separate from and independent
           of the terms and conditions of this Public License.

Section 8 – Interpretation.

        a. For the avoidance of doubt, this Public License does not, and shall
           not be interpreted to, reduce, limit, restrict, or impose conditions
           on any use of the Licensed Material that could lawfully be made
           without permission under this Public License.
        b. To the extent possible, if any provision of this Public License is
           deemed unenforceable, it shall be automatically reformed to the
           minimum extent necessary to make it enforceable. If the provision
           cannot be reformed, it shall be severed from this Public License
           without affecting the enforceability of the remaining terms
           and conditions.
        c. No term or condition of this Public License will be waived and no
           failure to comply consented to unless expressly agreed to by
           the Licensor.
        d. Nothing in this Public License constitutes or may be interpreted as a
           limitation upon, or waiver of, any privileges and immunities that
           apply to the Licensor or You, including from the legal processes of
           any jurisdiction or authority.