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 dog is biting a light brown dogs ear in a playful manner. Sentence 2: A black dog playfully bits another dog in a living room setting

A: 4
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Q: Sentence 1: The two dogs were in the pen. Sentence 2: The cowboy rode his horse in the desert.

A: 0
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Q: Sentence 1: A yellow and blue airplane is flying in the sky. Sentence 2: The white airplane is flying in the blue sky.

A:
3
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