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: The two dogs blend in with the stuff animals. Sentence 2: Two dogs sit on a couch with many stuffed animals.

Output: 3


Input: Consider Input: Sentence 1: A black dog running through water. Sentence 2: A black dog is running through some water.

Output: 5


Input: Consider Input: Sentence 1: North Korea Postpones Family Reunions with South Sentence 2: North Korea 'postpones' family unions with South Korea


Output: 5