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: Clinton ready to fight for Obama Sentence 2: Clinton a tough act for Obama to follow

Output: 1


Input: Consider Input: Sentence 1: Panda's play on a swing. Sentence 2: A man is playing guitar.

Output: 1


Input: Consider Input: Sentence 1: A woman is dicing a potato. Sentence 2: A woman cuts tofu into tiny pieces.


Output: 2