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 holds on to a handle in the water. Sentence 2: A man is holding onto handles in the air.
Example Output: 3

Example Input: Sentence 1: Five alternate jurors were also chosen, with a final one set to be selected Friday morning from the panel. Sentence 2: Five alternate jurors also were selected, with a sixth alternate to be picked on Friday.
Example Output: 5

Example Input: Sentence 1: A man is patting an alligator on the mouth. Sentence 2: A person is dumping chopped vegetables into a pot on the stove.
Example Output:
0