Those cannot be used as that would be work in the engine. All work in the engine for your jam game has to be done from scratch. You can remake them in your jam project though.
In the case of what's already included in the engine, that doesn't constitute work on any participants part since everyone has equal access to it. You're allowed to use the database entries that the engine comes packaged with.
My prior answer was in regards to custom made animation data entries.
