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.

Ex Input:
Sentence 1: A person wearing a helmet rides a bike near a white structure. Sentence 2: A person wearing a bike helmet rides a bike on a path through trees.

Ex Output:
3


Ex Input:
Sentence 1: Two people are riding a motorcycle. Sentence 2: Two people are riding a bike.

Ex Output:
2


Ex Input:
Sentence 1: The benchmark 10-year note US10YT=RR lost 11/32 in price, taking its yield to 3.21 percent from 3.17 percent late on Monday. Sentence 2: Further out the curve, the benchmark 10-year note US10YT=RR shed 18/32 in price, taking its yield to 3.24 percent from 3.17 percent.

Ex Output:

2