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: Slutstamp! A dear friend from Ohio sent me this. Sentence 2: A dear friend from Ohio sent me this.

Output: 4


Input: Consider Input: Sentence 1: The onus is on the manufacturer of a product to convince consumers it is safe. Sentence 2: The manufacturer has to convince the government it's safe.

Output: 3


Input: Consider Input: Sentence 1: Counties with population declines will be Vermillion, Posey and Madison. Sentence 2: Vermillion, Posey and Madison County populations will decline.


Output: 5