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 large black bird is sitting in the water. Sentence 2: The birds are swimming in the water.
[A]: 3


[Q]: Sentence 1: I agree completely I am hoping he is into a second term of office. Sentence 2: I am hoping he is into a second term of office.
[A]: 4


[Q]: Sentence 1: Suicide bomber attacks Algerian security base Sentence 2: Suicide bomber targets Nigerian church
[A]:
1