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 softball player swinging at a pitch. Sentence 2: A baseball player hitting the ball

SOLUTION: 3

PROBLEM: Sentence 1: A black dog emerges from the water with a white ball in its mouth. Sentence 2: a black dog walking out of the water with a white ball in his mouth.

SOLUTION: 5

PROBLEM: Sentence 1: A dog lies on his back on a wooden floor. Sentence 2: A dog is laying on the floor.

SOLUTION:
4