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 man is riding a horse. Sentence 2: A man is riding on a horse.

SOLUTION: 5

PROBLEM: Sentence 1: For the year, it expects sales of $94 million and a profit of 26 cents a share from continuing operations. Sentence 2: This is an increase from the $22.5 million and 5 cents a share previously forecast.

SOLUTION: 1

PROBLEM: Sentence 1: I missed the point where he said that black people were going to riot. Sentence 2: Never, did I ever, did I say blacks were going to riot.

SOLUTION:
2