| http://www.w3.org/ns/prov#value | - Does it matter that the socks were in different colors? would they have done the same if all socks had been black? if it matters that the socks were in different colors: does it matter how many different colors? (2, 3, 4, 5 ..) Can we assume that, after they bumped into each other, there was a pile with an even number of pairs? with an even number of pairs in each color? with an even number of dif
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