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.

Sentence 1: Thai opposition protesters begin Bangkok shutdown Sentence 2: Thai protesters launch Bangkok 'shutdown'
5

Sentence 1: Red panda‚Äôs short-lived zoo escape Sentence 2: India‚Äôs march to Mars
0

Sentence 1: Three dogs pulling a man on a bicycle through the snow. Sentence 2: The dogs are pulling a man on a type of bike, through the snow.

5