The source code of each Playground webpage is open under the GNU Lesser General Public License (LGPL).
When redistributing the programs under LGPL, LGPL must be applied to the programs regardless of the revisions. Be sure to refer http://www.gnu.org/licenses/lgpl.html for the full text of the license.

Language Grid Playground (hereafter called "the Playground") source code is released to public so as to provide Language Grid users, who are developing new language services and tools, a set of sample codes that they can refer to. However, when using the Playground source codes, the source code user must abide by the following terms:

Each webpage in the Playground displays Kyoto University’s copyright notice along with the “all rights reserved” clause. This indicates that the webpage generated from the Playground source code must not be made public as is; therefore, the look and feel of the webpage must be changed.

The Playground realizes a simple user authentication capability using the Language Grid User ID with the help of Language Grid Operation Center. However, the Language Grid User ID is not disclosed to the general Language Grid users. Therefore, if a third-party developer develops a new language service based on the Playground source code, and decides to provide the new language service to the general public, the developer must implement his or her own user authentication capability.

The release of the Playground source code is intended to support the creation and testing of new language services by universities and research institutes. It is not intended to allow similar or identical sites to be maintained at different locations.

There may be cases where the Playground needs to be ported to a laboratory (or closed) environment for research purposes, such as for research and development of new functions linking to the existing Playground function. Those who wish to obtain a complete set of Playground source codes for such purposes should contact Language Grid Playground Team at the following address:

playground at langrid.org

When porting the Language Grid Playground website, the source code user must abide by the following terms:

The ported Playground must not be made public. Even if the source code user implements his or her user authentication capability, the ported Playground must not be made public.

The complete set of Playground source codes provided for porting must not be redistributed regardless of the source code license. Furthermore, upon termination of research and development, all Playground source code must be completely deleted.

Note that the complete set of Playground source codes for porting does not include any Language Grid User ID.