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: A boy is crawling into a dog house. Sentence 2: A cat is playing on the floor.

Output: 0


Input: Consider Input: Sentence 1: A man is running on the road. Sentence 2: A panda dog is running on the road.

Output: 2


Input: Consider Input: Sentence 1: What isn't how what was sold? Sentence 2: It's not how it was sold, gb.


Output: 2