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 woman is slipping in the water-tub. Sentence 2: A woman is lying in a raft.

SOLUTION: 1

PROBLEM: Sentence 1: A young man and woman sitting on a bench outside are kissing. Sentence 2: The man and woman sitting on a bench are kissing.

SOLUTION: 5

PROBLEM: Sentence 1: Scientists Resurrect Flowers from Prehistoric Seeds Sentence 2: Nintendo trims red ink, lowers forecast for year

SOLUTION:
0