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: At least Mexico had a presence in California. Sentence 2: Mexico has ZERO claim to California.
[EX A]: 1

[EX Q]: Sentence 1: Bradley Manning-WikiLeaks case turns to sentencing Sentence 2: Manning WikiLeaks case turns to sentencing phase
[EX A]: 5

[EX Q]: Sentence 1: Rudd sworn in as new Australian PM Sentence 2: Muslims in hiding as sectarian ...
[EX A]:
0