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: The report ranked 45 large companies based on employment, marketing, procurement, community reinvestment and charitable donations. Sentence 2: Of those three, only Dillard's responded to the survey that ranked 45 large companies on employment, marketing, procurement, community reinvestment and charitable donations.

Ex Output:
3


Ex Input:
Sentence 1: Teenage girl killed in east London Shereka Marsh was shot in the neck, police say Sentence 2: Hackney shooting: Teenager Shereka Marsh 'bled to death after being shot in neck'

Ex Output:
5


Ex Input:
Sentence 1: The boy cut the grass by the curb with scissors. Sentence 2: A boy cuts grass with scissors.

Ex Output:

4