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.

Q: Sentence 1: The rate of skin cancer has tripled since the 1950s in Norway and Sweden, according to the study. Sentence 2: The study also found that skin cancer nearly tripled in Norway and Sweden since the 1950s.

A: 5
****
Q: Sentence 1: Italy soldiers die in Afghanistan Sentence 2: Two UK Soldiers Killed In Afghanistan

A: 1
****
Q: Sentence 1: I'll Have Another retired to stud Sentence 2: I'll Have Another wins Preakness

A:
1
****