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: Two dogs playing in the snow. Sentence 2: Two black dogs in the snow.
[A]: 4


[Q]: Sentence 1: Obama is extreme and leftwing. Sentence 2: Obama is part of the extreme leftwing.
[A]: 5


[Q]: Sentence 1: Scribner's body was found floating in the city's Portage Bay, where he lived with his wife in a houseboat. Sentence 2: A kayaker found Dr. Scribner's body floating near the doctor's houseboat in Portage Bay, where he was eating lunch when his wife, Ethel, left for an appointment.
[A]:
3