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: Two green and white trains sitting on the tracks. Sentence 2: Two green and white trains on tracks.

SOLUTION: 4

PROBLEM: Sentence 1: A group of sheep grazing on a hill. Sentence 2: A group of sheep are on a hill.

SOLUTION: 4

PROBLEM: Sentence 1: Boston bombing suspect buried in Virginia Sentence 2: Boston bomb suspect buried in Virginia cemetery

SOLUTION:
5