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: Panda's play on a swing. Sentence 2: A man is playing guitar.

A: 1
****
Q: Sentence 1: Spain asks for bank rescue Sentence 2: Spaniard on trial for Cuban dissident’s death

A: 0
****
Q: Sentence 1: BlackBerry loses US$965m in Q2 Sentence 2: BlackBerry loses $965M in 2nd quarter

A:
5
****