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: Passed in 1999 but never put into effect, the law would have made it illegal for bar and restaurant patrons to light up. Sentence 2: Passed in 1999 but never put into effect, the smoking law would have prevented bar and restaurant patrons from lighting up, but exempted private clubs from the regulation.
[A]: 3


[Q]: Sentence 1: A young boy in a white dress shirt is playing on a grassy plain. Sentence 2: A woman is getting her hair done at a salon.
[A]: 0


[Q]: Sentence 1: A black and tan dog looks at a black sheep. Sentence 2: A black dog looking at a brown sheep in a pen.
[A]:
3