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 woman is speaking in sign language. Sentence 2: A woman spices some seafood.

Ex Output:
1


Ex Input:
Sentence 1: The military officer barked at the recruits. Sentence 2: An officer is talking to recruits.

Ex Output:
2


Ex Input:
Sentence 1: A brown dog chews on an orange ball. Sentence 2: A dog has an orange ball in its mouth.

Ex Output:

4