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: A young boy in a white dress shirt is playing on a grassy plain. Sentence 2: A woman is getting her hair done at a salon.

Ex Output:
0


Ex Input:
Sentence 1: A three-judge panel of the 11th U.S. Circuit Court of Appeals ruled late Friday that the small size, limited use and secular purpose make the image legitimate. Sentence 2: A three-judge panel of the 8th U.S. Circuit Court of Appeals in St. Louis overturned a ruling issued last year that supported the ordinance.

Ex Output:
3


Ex Input:
Sentence 1: A badger is digging in the dirt. Sentence 2: A man is moving large rocks.

Ex Output:

0