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: I agree completely I am hoping he is into a second term of office. Sentence 2: I am hoping he is into a second term of office.

SOLUTION: 4

PROBLEM: Sentence 1: South Africa has the world's highest caseload with 4.7 million people infected with HIV or AIDS. Sentence 2: With 4.7 million people infected with HIV or AIDS, South Africa has the world's highest AIDS caseload.

SOLUTION: 5

PROBLEM: Sentence 1: A woman is walking on an open ground with a pet dog as some other dogs follow them. Sentence 2: A man is walking with several dogs.

SOLUTION:
2