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: a black and white cow in hay. Sentence 2: A black and white cow in a pen with hay.
[EX A]: 4

[EX Q]: Sentence 1: A close-up of a sheep with its tongue hanging out. Sentence 2: Close up image of a sheep with it's tongue hanging out.
[EX A]: 5

[EX Q]: Sentence 1: A white and brown dog is running over grass. Sentence 2: A brown and white dog is running across the grass.
[EX A]:
5