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: Two baby pandas are playing. Sentence 2: Two pandas are laying together.

Ex Output:
3


Ex Input:
Sentence 1: A man sharpens a pencil using a knife. Sentence 2: A woman is dancing in the rain.

Ex Output:
0


Ex Input:
Sentence 1: A brown and white dog with a pink collar is barking at a brown dog with a blue collar in the snow. Sentence 2: The dog with the red collar is bearing it's teeth at the dog with the blue collar.

Ex Output:

3