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 cracking eggs into a bowl. Sentence 2: A woman is placing skewers onto a rack.

Ex Output:
1


Ex Input:
Sentence 1: A brown dog is in the middle of a line of dogs chasing a dirty tennis ball over dirt. Sentence 2: There are two white dogs and one brown dog chasing a ball.

Ex Output:
3


Ex Input:
Sentence 1: A black dog walking through water. Sentence 2: Two black dogs walking through the snow.

Ex Output:

2