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: The great thing about living here is there's space. Sentence 2: The bad thing is there's space.
2

Sentence 1: A woman is boiling shrimp. Sentence 2: A woman is combing her hair.
1

Sentence 1: A man is doing a card trick. Sentence 2: A man is squeezing water.

0