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 young boy in a brown jacket playing with snow. Sentence 2: Two dogs are playing in the snow.

SOLUTION: 1

PROBLEM: Sentence 1: The headlights on a blue car. Sentence 2: Close up of the headlights on a blue car.

SOLUTION: 4

PROBLEM: Sentence 1: The whole earth combined produces enough food for  billion people. Sentence 2: Who does it now only produce enough for  billion?

SOLUTION:
2