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: The hedgehog chewed on the towel. Sentence 2: A hedgehog is biting at a blanket.

SOLUTION: 3

PROBLEM: Sentence 1: A woman is cooking something. Sentence 2: A woman is pouring ingredients into a frying pan.

SOLUTION: 3

PROBLEM: Sentence 1: Red double decker bus. Sentence 2: Red double decker bus with hood up.

SOLUTION:
4