TASK DEFINITION: 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.
PROBLEM: Sentence 1: Bradley Manning-WikiLeaks case turns to sentencing Sentence 2: Manning WikiLeaks case turns to sentencing phase

SOLUTION: 5

PROBLEM: Sentence 1: A woman is scraping a carrot. Sentence 2: A man is striking clay pots.

SOLUTION: 0

PROBLEM: Sentence 1: A skateboarder doing a trick on a stone wall. Sentence 2: A skateboarder riding up to a slope.

SOLUTION:
2