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: For the year, it expects sales of $94 million and a profit of 26 cents a share from continuing operations. Sentence 2: This is an increase from the $22.5 million and 5 cents a share previously forecast.

Ex Output:
1


Ex Input:
Sentence 1: A baby monkey scratches itself. Sentence 2: The monkey scratched his tummy.

Ex Output:
3


Ex Input:
Sentence 1: The man is riding a bike down a dirt hill. Sentence 2: A trick bicyclist grinds down a handrail.

Ex Output:

2