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: A girl is playing a flute. Sentence 2: A band is playing on a stage.

Output: 1


Input: Consider Input: Sentence 1: A man is cutting tomatoes into pieces. Sentence 2: A woman is cutting some vegetables.

Output: 2


Input: Consider Input: Sentence 1: A small dog is chasing a yoga ball. Sentence 2: A dog is chasing a ball.


Output: 4