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: Umm the California was a cargo ship I dont care what the article says. Sentence 2: The California was a cargo ship.

Ex Output:
4


Ex Input:
Sentence 1: The company didn't detail the costs of the replacement and repairs. Sentence 2: But company officials expect the costs of the replacement work to run into the millions of dollars.

Ex Output:
2


Ex Input:
Sentence 1: Washington: More Than 100 Are Charged in Medicare Fraud Sweep Sentence 2: Washington: Court Upholds Voting Rights Act in Alabama Case

Ex Output:

1