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: Two people sailing a small white sail boat. Sentence 2: Couple sailing in a small sailboat.

Output: 4


Input: Consider Input: Sentence 1: It is mostly just the Dutch. Sentence 2: In fact, it's just the Dutch.

Output: 4


Input: Consider Input: Sentence 1: God definately does not exist. Sentence 2: God probably does not exist.


Output: 3