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 big turtle is walking. Sentence 2: The tortoise is walking.

Output: 4


Input: Consider Input: Sentence 1: A man in a blue cap is sitting on a stool under a tree. Sentence 2: A dog standing on a beach with a ball nearby.

Output: 0


Input: Consider Input: Sentence 1: I hope everything is ok! Sentence 2: I hope your LO is ok.


Output: 2