Evaluate the similarity between them and classify them into classes from 0-5 as follows:
0 : The two sentences are completely dissimilar.
1 : The two sentences are not equivalent, but are on the same topic.
2 : The two sentences are not equivalent, but share some details.
3 : The two sentences are roughly equivalent, but some important information differs/missing.
4 : The two sentences are mostly equivalent, but some unimportant details differ.
5 : The two sentences are completely equivalent, as they mean the same thing.

Sentence 1: Two dogs swim in a pool. Sentence 2: Dogs are swimming in a pool.
4

Sentence 1: Let's let this play out in court. Sentence 2: Nothing is stopping this thing from playing out in court.
4

Sentence 1: The Episcopal Church ''is alienating itself from the Anglican Communion,'' said the Very Rev. Peter Karanja, provost of the All Saints Cathedral, in Nairobi. Sentence 2: In Nairobi, the provost of All Saints Cathedral, the Very Reverend Peter Karanja, said the US Episcopal Church was alienating itself from the Anglican Communion.

5