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: Tropical Storm Isaac boosts jobless claims Sentence 2: Tropical Storm Joyce forms, stays in open Atlantic

Output: 1


Input: Consider Input: Sentence 1: Andy Murray deserves knighthood, David Cameron says Sentence 2: David Cameron: Andy Murray deserves a knighthood

Output: 5


Input: Consider Input: Sentence 1: Two dogs running down a beach. Sentence 2: two dogs running on the beach


Output: 5