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: A man in a blue cap is sitting on a stool under a tree. Sentence 2: A dog standing on a beach with a ball nearby.

SOLUTION: 0

PROBLEM: Sentence 1: A girl in orange lights a candle. Sentence 2: A girl in an orange shirt lights candles.

SOLUTION: 4

PROBLEM: Sentence 1: the number 254 was tabulated with an afp count compiled from press and witness reports. Sentence 2: the number of executions in iran in 2007 was calculated by an afp count compiled from press reports.

SOLUTION:
2