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: Could be a lot of things. Sentence 2: Could be a simple mistake.

Output: 2


Input: Consider Input: Sentence 1: The man is riding a horse. Sentence 2: A man is riding on a horse.

Output: 5


Input: Consider Input: Sentence 1: A man is giving a lecture on a podium. Sentence 2: A man is delivering a lecture at an event celebrating the game of cricket.


Output: 2