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 brown and white dog is walking in shallow waters. Sentence 2: A white and brown dog appears to be walking on the water.
[EX A]: 5

[EX Q]: Sentence 1: A man is playing an electronic keyboard. Sentence 2: A band is playing instruments.
[EX A]: 1

[EX Q]: Sentence 1: Two black dogs playing in the snow. Sentence 2: A black dog digs in the snow.
[EX A]:
3