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: Iraq Backs Egypt Crackdown on Morsi Supporters Sentence 2: Iraq backs Egypt crackdown on Mohamed Morsi supporters
5

Sentence 1: A woman is chopping up garlic. Sentence 2: The woman is dicing garlic.
5

Sentence 1: A group of people in boats racing towards the shore. Sentence 2: A classroom of students watching a presentation.

0