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 white bus with the word Julia is near water and a big ship. Sentence 2: A white bus with water and a barge in the background.
[EX A]: 4

[EX Q]: Sentence 1: A man and woman is riding in a car. Sentence 2: A woman is frying shrimp.
[EX A]: 0

[EX Q]: Sentence 1: Mandela back in hospital in ‚Äėserious but stable‚Äô condition Sentence 2: Nelson Mandela returns to hospital in ‚Äėserious but stable‚Äô condition
[EX A]:
5