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: People are standing on an escalator moving up. Sentence 2: People ride up an escalator.

Ex Output:
5


Ex Input:
Sentence 1: An elderly woman rides a bicycle along a city street. Sentence 2: An elderly woman walking uphill crossing the street.

Ex Output:
2


Ex Input:
Sentence 1: A woman with two men in hats socializing outside. Sentence 2: A young woman with a knit cap stands against the wall of a Domino's Pizza.

Ex Output:

1