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: it will be hosted by the australian government. Sentence 2: the u.s. plans have angered the russian government.

SOLUTION: 0

PROBLEM: Sentence 1: In an interview, Healey, who is a criminologist, acknowledged that much of the sentiment among legislators here and across the country was wariness toward capital punishment. Sentence 2: In an interview, Ms. Healey, who is a criminologist, said many lawmakers here and across the country shared a wariness toward capital punishment.

SOLUTION: 5

PROBLEM: Sentence 1: A man is playing a keyboard. Sentence 2: A man plays a keyboard.

SOLUTION:
5