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: Man riding a bicycle down a narrow path. Sentence 2: A man riding a unicycle down a paved road

SOLUTION: 3

PROBLEM: Sentence 1: A young boy in a white dress shirt is playing on a grassy plain. Sentence 2: A woman is getting her hair done at a salon.

SOLUTION: 0

PROBLEM: Sentence 1: A group of four children dancing in a backyard. Sentence 2: A group of children do stretches on colored mats.

SOLUTION:
2