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: Among three major candidates, Schwarzenegger is wining the battle for independents and crossover voters. Sentence 2: Schwarzenegger picks up more independents and crossover voters than Bustamante.

Ex Output:
3


Ex Input:
Sentence 1: How is this slanted against Bush?? Sentence 2: Where is the slant against Bush?

Ex Output:
4


Ex Input:
Sentence 1: One of the most well studied facets of temperament is how people respond to novelty. Sentence 2: One of the defining and well-studied characteristics of temperament is how people react to novelty.

Ex Output:

5