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: Mom busted in and said, "What's that noise?" Sentence 2: My kids busted in and said 'whats that Dad?'
Example Output: 2

Example Input: Sentence 1: A man is rapidly chopping some mushrooms using a knife. Sentence 2: A person is quickly chopping mushrooms with a knife.
Example Output: 4

Example Input: Sentence 1: A person is jumping a bicycle and performing a trick. Sentence 2: A person riding a dirt bike in the outdoors.
Example Output:
2