Yes. But I didn't realize that 43% of the words in that dictionary contain "'s". In that case, the probability that, for 3 collisions, there is at least one el

Yes. But I didn't realize that 43% of the words in that dictionary contain "'s". In that case, the probability that, for 3 collisions, there is at least one element in every collision contains "'s" is 31%. That seems reasonable to me.