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 dog is running on the ground. Sentence 2: A girl is tapping her finger nails.

A: 0
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Q: Sentence 1: A chicken is pecking at a dead mouse. Sentence 2: A rooster pecks at a dead mouse.

A: 4
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Q: Sentence 1: a red and white race car racing on a dirt racetrack. Sentence 2: A person is riding a dirt bike in a race on a dirt track.

A:
1
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