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 boy is crawling into a dog house. Sentence 2: A cat is playing on the floor.

SOLUTION: 0

PROBLEM: Sentence 1: georgian government websites are under intense cyber attack following russian military strikes against georgia late last week. Sentence 2: the cyber attacks follow russian military strikes launched against georgia late last week.

SOLUTION: 5

PROBLEM: Sentence 1: They produce nothing I can eat, wear, live in. Sentence 2: Think about all the things you can't "eat, wear, or live in".

SOLUTION:
2