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.

Q: Sentence 1: And I'm your friend Mitt. Sentence 2: Your good friend Mitt.

A: 4
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Q: Sentence 1: Two constructions workers sit on a beam taking a break. Sentence 2: The man is putting on his shirt near an elevator.

A: 0
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Q: Sentence 1: Saudis to permit women to compete in Olympics Sentence 2: Saudi Women Allowed To Compete At Olympics

A:
5
****