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 white dog with red ears is running in the snow. Sentence 2: a wet black dog with a red collar is in the river

SOLUTION: 1

PROBLEM: Sentence 1: A man is speaking on a stage. Sentence 2: A man is speaking at a podium.

SOLUTION: 3

PROBLEM: Sentence 1: Two of the Britons, Sandy Mitchell from Glasgow and Glasgow-born William Sampson, face the death penalty. Sentence 2: Sandy Mitchell, 44, from Kirkintilloch, Glasgow, and William Sampson, a British citizen born in Glasgow, face beheading in public.

SOLUTION:
3