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 man and a woman laughing. Sentence 2: A man and a woman kiss.

SOLUTION: 1

PROBLEM: Sentence 1: During the same quarter last year, EDS declared a profit of $354 million, or 72 cents per share. Sentence 2: EDS reported a first-quarter loss of $126 million, or 26 cents per share.

SOLUTION: 2

PROBLEM: Sentence 1: North Korea conducts third nuclear test Sentence 2: North Korea Confirms Third Nuclear Test

SOLUTION:
5