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.

[EX Q]: Sentence 1: The puppy played with a blue tennis ball. Sentence 2: A puppy is playing with a tennis ball.
[EX A]: 4

[EX Q]: Sentence 1: Panda's play on a swing. Sentence 2: A man is playing guitar.
[EX A]: 1

[EX Q]: Sentence 1: Tamil parties blame the Liberation Tigers of Tamil Eelam (LTTE) for these killings. Sentence 2: The government wanted to revive talks with the Liberation Tigers of Tamil Eelam (LTTE) to discuss the interim structure.
[EX A]:
2