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: Man standing in front of silver train. Sentence 2: Man standing in front of a silver rail car.

Output: 4


Input: Consider Input: Sentence 1: A woman peels an apple. Sentence 2: A man pops wheelies on a motorcycle.

Output: 0


Input: Consider Input: Sentence 1: Six people are seated at a restaurant table and looking into the camera. Sentence 2: A group of people sitting at a restaurant table.


Output: 3