| http://www.w3.org/ns/prov#value | - If you have done The Puzzling, it may help you very much since some puzzles are kind of the same, but with a little tricky move is added (which sometimes makes in sort that you think you have solved it totally and get out of the room thinking something got opened, but in fact, you forgot to do a little thing (he is a tip )).This is very well done, but less noob-friendly.
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