diff --git a/data/materials/LICENSE.txt b/data/materials/LICENSE.txt
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+License
+
+The file "wp3-exps-1-2.zip" and all files therein are licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.