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: US Cannot 'Conclusively Determine' Chemical Weapons Use in Syria Sentence 2: U.S. Sees No Conclusive Evidence of Chemical Arms Use by Syria

SOLUTION: 5

PROBLEM: Sentence 1: The rate of skin cancer has tripled since the 1950s in Norway and Sweden, according to the study. Sentence 2: The study also found that skin cancer nearly tripled in Norway and Sweden since the 1950s.

SOLUTION: 5

PROBLEM: Sentence 1: Ankeet Chavan granted conditional bail for marriage Sentence 2: Ankeet Chavan granted bail to get married

SOLUTION:
5