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: Thai opposition protesters begin Bangkok shutdown Sentence 2: Thai protesters launch Bangkok 'shutdown'

SOLUTION: 5

PROBLEM: Sentence 1: A small white cat standing in a sink. Sentence 2: Grey and white cat sitting in bathroom sink.

SOLUTION: 4

PROBLEM: Sentence 1: The white dog runs across the snow. Sentence 2: A white bear walks along snow-covered ground and casts a shadow on the snow.

SOLUTION:
1