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: NYPD Twitter Outreach Backfires Badly Sentence 2: NYPD's twitter campaign backfires
[EX A]: 5

[EX Q]: Sentence 1: A woman is adding oil on fishes. Sentence 2: A woman is pouring water on fish.
[EX A]: 2

[EX Q]: Sentence 1: Kerry: $4b Palestinian Economic Plan Could Work Sentence 2: Kerry: No deal yet in nuclear talks with Iran
[EX A]:
0