The data comes with a CLARIN PUB+BY+NC+SA license. That means:
PUB - The language resource can be distributed publicly.
BY - Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any wa$
NC - NonCommercial — You may not use the material for commercial purposes.
SA - ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
The CLARIN licenses are modelled on the Creative Commons licenses. See the CC Attribution-NonCommercial-ShareAlike 3.0 Unported License for further explanations.