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 international atomic energy agency may have been tricked because it was eager for a deal. Sentence 2: the international atomic energy agency plan draws out negotiations for many months.

Ex Output:
2


Ex Input:
Sentence 1: A woman is scraping a carrot. Sentence 2: A man is striking clay pots.

Ex Output:
0


Ex Input:
Sentence 1: A young boy is punching a yellow ball. Sentence 2: A small dog jumps over a yellow beam.

Ex Output:

0