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: Mann's work was all about math. Sentence 2: Mann's work and the HS was all about Tree rings.

Output: 2


Input: Consider Input: Sentence 1: Allegiant shares rose $4, or $17.2 percent, to $27.43 in Thursday morning trading on the Nasdaq Stock Market. Sentence 2: Allegiant's stock closed Wednesday at $23.40, up 64 cents, in trading on the Nasdaq market.

Output: 2


Input: Consider Input: Sentence 1: A boy wearing a red shirt runs across the grass with a furry dog. Sentence 2: A sports fan is wearing face paint in the stands.


Output: 0