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 skinny cows are standing on the grass. Sentence 2: The white ducks are standing on the ground.

SOLUTION: 1

PROBLEM: Sentence 1: In 2006, the group says the market will rebound 29.6 percent to $21.3 billion in sales. Sentence 2: In 2006, Asia Pacific will report growth of 7.9 percent to $81.8 billion.

SOLUTION: 2

PROBLEM: Sentence 1: Girls are walking on the stage. Sentence 2: Women models are walking down a catwalk.

SOLUTION:
3