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: Two people dressed in white standing on a grass field. Sentence 2: A person is standing underneath an overpass near a highway.
[EX A]: 0

[EX Q]: Sentence 1: A girl in orange lights a candle. Sentence 2: A girl in an orange shirt lights candles.
[EX A]: 4

[EX Q]: Sentence 1: I think you need to reread what I wrote. Sentence 2: You need to reread what I wrote.
[EX A]:
5