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: Two girls are sitting in front of a statue. Sentence 2: Two blonde girls are sitting next to a statue

Output: 4


Input: Consider Input: Sentence 1: 7 dead in Christian school shooting Sentence 2: 5 wounded in Ohio school shooting

Output: 1


Input: Consider Input: Sentence 1: Z stalked him down, then shot him. Sentence 2: You claimed Zimmerman " Stalked him down, then shot him ".


Output: 3