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 train rides on his tracks. Sentence 2: The train comes down the track, between two rows of trees.

SOLUTION: 3

PROBLEM: Sentence 1: Wells’ other series include NBC’s ER and Third Watch. Sentence 2: Wells' other series include NBC's "ER" and "Third Watch."

SOLUTION: 5

PROBLEM: Sentence 1: A man making a bed in a hotel. Sentence 2: A man is holding a animal.

SOLUTION:
1