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 baby monkey scratches itself. Sentence 2: The monkey scratched his tummy.

Output: 3


Input: Consider Input: Sentence 1: A black and brown dog runs through the woods. Sentence 2: A dog running through the woods.

Output: 4


Input: Consider Input: Sentence 1: Stripping out the extraordinary items, fourth-quarter earnings were 64 cents a share compared to 25 cents a share in the prior year. Sentence 2: Earnings were 59 cents a share for the three months ended May 25 compared with 15 cents a share a year earlier.


Output: 1