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.

Input: Consider Input: Sentence 1: Wells’ other series include NBC’s ER and Third Watch. Sentence 2: Wells' other series include NBC's "ER" and "Third Watch."

Output: 5


Input: Consider Input: Sentence 1: A gray cat with green eyes looks at the camera. Sentence 2: A grey cat with green eyes looking into the camera.

Output: 5


Input: Consider Input: Sentence 1: The man talked on the telephone. Sentence 2: The man is talking on the phone.


Output: 4