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 bloody man and woman pose for a picture. Sentence 2: A man in woman dressed warmly pose for a picture.

Ex Output:
2


Ex Input:
Sentence 1: A group of people are firing up a hot air balloon. Sentence 2: A large group of people riding brown and white horses.

Ex Output:
0


Ex Input:
Sentence 1: Someone is sitring noodles in water. Sentence 2: A woman is boiling noodles in water.

Ex Output:

3