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 boy is running on a beach. Sentence 2: Two boys are playing in the beach.

Output: 3


Input: Consider Input: Sentence 1: A black and white photo of a woman showing a horse. Sentence 2: a black and white photo of cows in their stalls.

Output: 1


Input: Consider Input: Sentence 1: A woman is dancing and singing with other women. Sentence 2: A woman is dancing and singing in the rain.


Output: 3