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 man and woman are Bollywood dancing. Sentence 2: A man an woman are dancing in the rain.

Output: 2


Input: Consider Input: Sentence 1: A bloody man and woman pose for a picture. Sentence 2: A man in woman dressed warmly pose for a picture.

Output: 2


Input: Consider Input: Sentence 1: Other changes in the plan refine his original vision, Libeskind said. Sentence 2: Many of the changes are improvements to the original plan, Libeskind said.


Output: 5