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 dog emerges form the water with a stick in its mouth. Sentence 2: A dog runs toward the camera with a stick in its mouth.

Ex Output:
2


Ex Input:
Sentence 1: A man is speaking on a stage. Sentence 2: A man is speaking at a podium.

Ex Output:
3


Ex Input:
Sentence 1: A girl holds up a yellow balloon animal. Sentence 2: A child holds a yellow balloon.

Ex Output:

4