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: Black bird sitting on a concrete slab. Sentence 2: Small dog sitting next to white wall.

SOLUTION: 1

PROBLEM: Sentence 1: A boy is running on a beach. Sentence 2: Two boys are playing in the beach.

SOLUTION: 3

PROBLEM: Sentence 1: An animal is walking on the ground. Sentence 2: A solenodon is walking along the ground.

SOLUTION:
3