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: elbaradei states that a middle east peace deal can only be reached in parallel with a security agreement based on eradicating all weapons of mass destruction from the region. Sentence 2: elbaradei was quoted as saying that a peace deal between israel and its arab neighbors must be reached in parallel with a security agreement based on eradicating all weapons of mass destruction from the region.

Output: 5


Input: Consider Input: Sentence 1: If you asked , conservatives, the numbers will be skewed to the right. Sentence 2: If you asked , progressives, the numbers would be skewed to the left.

Output: 3


Input: Consider Input: Sentence 1: Could this have been an enema? Sentence 2: @ossobuco, Could this have been an enema?


Output: 5