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: It is mostly just the Dutch. Sentence 2: In fact, it's just the Dutch.
4

Sentence 1: Three women are dancing. Sentence 2: The man is dancing.
2

Sentence 1: My gosh, I'm the one with the pregnancy ticker. Sentence 2: I have the pregnancy ticker.

4