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: He explained that he found Antetonitrus when he came to Wits in 2001 as a post-doctoral research assistant at England's University of Bristol. Sentence 2: He explained that he found antetonitrus when he came to Wits in 2001 while a post-doctoral research assistant at Bristol University in Britain.
[EX A]: 5

[EX Q]: Sentence 1: Some believe the 'right' is most important. Sentence 2: Some believe not slaughtering the unborn is most important.
[EX A]: 1

[EX Q]: Sentence 1: The European Union banned the import of genetically modified food in 1998; the United States is now demanding that the EU end its ban. Sentence 2: The union banned the import of genetically modified food in 1998 after many consumers feared health risks.
[EX A]:
3