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 woman holding a newspaper. Sentence 2: A man rollerblading on a metal bar.

Ex Output:
0


Ex Input:
Sentence 1: A small black dog is in the grass. Sentence 2: A black dog is running in the grass.

Ex Output:
4


Ex Input:
Sentence 1: Gillette shares rose $1.45, or 4.5 percent, to $33.95 in afternoon New York Stock Exchange trading. Sentence 2: Shares of Gillette closed down 45 cents at $33.70 in trading Wednesday on the New York Stock Exchange.

Ex Output:

2