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.

[EX Q]: Sentence 1: Two women posing with a baby. Sentence 2: A woman poses with a baby.
[EX A]: 2

[EX Q]: Sentence 1: A child with his hands on his head. Sentence 2: A little boy stands with his hands on top of his head
[EX A]: 4

[EX Q]: Sentence 1: Mandela to spend Christmas in hospital Sentence 2: Mandela movie to open this month in South Africa
[EX A]:
0