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.

Example Input: Sentence 1: A man removes a couple of toaster scrambles from a plastic packet. Sentence 2: A man removes food from a bag.
Example Output: 2

Example Input: Sentence 1: Egypt's opposition criticizes president's speech Sentence 2: Pakistan's opposition party boycotts presidential elections
Example Output: 0

Example Input: Sentence 1: Pro-life people do not want a woman to be able to choose abortion for herself. Sentence 2: Pro-choice people do not try to force an abortion on anyone.
Example Output:
1