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: Several shots rang out in the darkness, but only one gator had been killed by 11 p.m. Sentence 2: Several shots rang out Wednesday night, but no gators were killed then.

A: 2
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Q: Sentence 1: A woman is feeding an aardvark. Sentence 2: A woman is chopping up garlic.

A: 0
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Q: Sentence 1: Two men are packing suitcases into the trunk of a car. Sentence 2: The men are putting suitcases into the car's trunk.

A:
4
****