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.

Ex Input:
Sentence 1: The company didn't detail the costs of the replacement and repairs. Sentence 2: But company officials expect the costs of the replacement work to run into the millions of dollars.

Ex Output:
2


Ex Input:
Sentence 1: The women are sitiing down. Sentence 2: Two women are sitting close to each other and talking.

Ex Output:
3


Ex Input:
Sentence 1: The little girl played on the grass with a dog and a ball. Sentence 2: A baby plays with a dog and ball.

Ex Output:

4