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: Operation Chaos is merely people voting. Sentence 2: Chaos is merely people voting.

Output: 4


Input: Consider Input: Sentence 1: A black dog emerges from the water with a white ball in its mouth. Sentence 2: a black dog walking out of the water with a white ball in his mouth.

Output: 5


Input: Consider Input: Sentence 1: A person holding a net is standing in the water. Sentence 2: A black woman and two black children are sitting in a thatched tent.


Output: 1