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: Two die in Syria violence after UN monitors land Sentence 2: Two year doping ban for Contador

SOLUTION: 0

PROBLEM: Sentence 1: paris is the capital of france. Sentence 2: lima is the capital of

SOLUTION: 1

PROBLEM: Sentence 1: Cars driving near a model building. Sentence 2: Vehicles driving infant of an ornate building.

SOLUTION:
2