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 ADRs fell 10 cents to $28.95 at 10:06 a.m. in New York Stock Exchange composite trading today. Sentence 2: Shares of Fox Entertainment Group Inc., News Corp.'s U.S. media and entertainment arm, fell 45 cents to $26.85 in New York Stock Exchange composite trading.

SOLUTION: 1

PROBLEM: Sentence 1: A horse rider is riding a white horse. Sentence 2: A woman leading a white horse.

SOLUTION: 3

PROBLEM: Sentence 1: And the simple fact today? Sentence 2: I repeat: And the simple fact today?

SOLUTION:
4