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.

Q: Sentence 1: The same survey a month ago had Street leading Katz 42 percent to 34 percent, with 21 percent undecided. Sentence 2: One month ago in the same poll, Katz was leading 46 to 40 percent.

A: 2
****
Q: Sentence 1: 6.6 quake rocks Indonesia's Papua: USGS Sentence 2: 6.6 quake rocks Indonesia's Papua: US Geological Survey

A: 5
****
Q: Sentence 1: The men are playing a guitar and having a drink. Sentence 2: There is a young boy with a red and blue jacket on feeding a sheep.

A:
0
****