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: Is Madeleine McCann Still Alive? Sentence 2: Reopen Madeleine case, police urge

SOLUTION: 1

PROBLEM: Sentence 1: A mostly black train on a track. Sentence 2: A car parked in front of train tracks.

SOLUTION: 1

PROBLEM: Sentence 1: A man is eating a banana by a tree. Sentence 2: A man is eating a banana.

SOLUTION:
4