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.

Q: Sentence 1: a black and white cow in hay. Sentence 2: A black and white cow in a pen with hay.

A: 4
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Q: Sentence 1: The Nazis increases the longevity of a handgun permit from  to  years. Sentence 2: The Nazis lowered the minimum age to buy a firearm from  to .

A: 2
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Q: Sentence 1: A person is slicing a tomato. Sentence 2: A person is slicing some meat.

A:
2
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