The Creative Commons Rights Expression Language (ccREL) lets you

describe copyright licenses in RDF. For more information on describing
licenses in RDF and attaching those descriptions to digital works, see
ccREL
in the
Creative Commons wiki
.
Work
a potentially copyrightable work
License
a set of requests/permissions to users of a Work, e.g. a copyright
license, the public domain, information for distributors
Jurisdiction
the legal jurisdiction of a license
Permission
an action that may or may not be allowed or desired
Requirement
an action that may or may not be requested of you
Prohibition
something you may be asked not to do
Reproduction
making multiple copies
Distribution
distribution, public display, and publicly performance
Derivative Works
distribution of derivative works
Sharing
permits commercial derivatives, but only non-commercial distribution
Notice
copyright and license notices be kept intact
Attribution
credit be given to copyright holder and/or author
Share Alike
derivative works be licensed under the same terms or compatible terms
as the original work
Source Code
source code (the preferred form for making modifications) must be
provided when exercising some rights granted by the license.
Copyleft
derivative and combined works must be licensed under specified terms,
similar to those on the original work
Lesser Copyleft
derivative works must be licensed under specified terms, with at least
the same conditions as the original work; combinations with the work
may be licensed under different terms
Commercial Use
exercising rights for commercial purposes
High Income Nation Use
use in a non-developing country
cc:permits
A
License
permits
a
Permission
.
cc:requires
A
License
requires
a
Requirement
.
cc:prohibits
A
License
prohibits
a
Prohibition
.
cc:jurisdiction
A
License
may have a
jurisdiction
, as defined by
Jurisdictions
.
cc:legalcode
The
URL
of the legal text of a
License
.
cc:deprecatedOn
A
License
may be deprecated; provides the
date
deprecated on
.
cc:license
A
Work
has license
a
License
.
(a
subproperty of dcterms:license
,
the same as xhtml:license
)
cc:morePermissions
A
related
resource
which describes additional permissions or alternative licenses for a
Work
which may be available.
cc:attributionName
The
name the creator
of a
Work
would like used when attributing re-use.
cc:attributionURL
The
URL
the creator of a
Work
would like used when attributing re-use.
cc:useGuidelines
A
related
resource
which defines non-binding use guidelines for the
work
.
RDF users might be interested in our machine-readable
RDF Schema
. A copy is also embedded in this document.
Developers
2025年国内旅游收入预计将突破历史新高,以下是综合多方数据的预测与分析:
一、核心数据预测

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