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 horse rider is riding a white horse. Sentence 2: A woman leading a white horse.
[EX A]: 3

[EX Q]: Sentence 1: Some children are raising their hands and clapping. Sentence 2: Three children are playing soccer in the sand.
[EX A]: 0

[EX Q]: Sentence 1: If you pass this bill, Big Brother will be watching you, said Rep. John Mabry, D-Waco. Sentence 2: If you pass this bill, Rep. John Mabry Jr., D-Waco, told colleagues, "Big Brother will be watching you."
[EX A]:
5