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: 2 dead, 2 injured in Nevada middle school shooting Sentence 2: Nevada: 2 dead, 2 hurt in middle school shooting

SOLUTION: 5

PROBLEM: Sentence 1: Two young women shear a sheep. Sentence 2: Two women sheering a sheep.

SOLUTION: 4

PROBLEM: Sentence 1: The dead woman was also wearing a ring and a Cartier watch. Sentence 2: It's a blond-haired woman wearing a Cartier watch on her wrist, the source said.

SOLUTION:
3