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: Glover spoke at a news conference that included about 20 relatives of the victims. Sentence 2: About 20 family members of the victims were invited to the news conference.

SOLUTION: 3

PROBLEM: Sentence 1: Strong new quake hits shattered Pak region Sentence 2: Powerful new earthquake hits shattered Pakistan region

SOLUTION: 5

PROBLEM: Sentence 1: A woman is running on the beach. Sentence 2: A dog is swimming in a pool.

SOLUTION:
0