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 is taking out the insides of a green pepper. Sentence 2: Someone is removing the seeds from a bell pepper.
Example Output: 4

Example Input: Sentence 1: A toy train is striking a toy car. Sentence 2: A toy train strikes a toy car.
Example Output: 5

Example Input: Sentence 1: A group of people in a living room. Sentence 2: A group of four people walking past a giant mushroom.
Example Output:
1