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: A young boy is holding a guitar. Sentence 2: A little boy is playing a guitar.
[EX A]: 3

[EX Q]: Sentence 1: Smiling man with reflective classes. Sentence 2: A gentleman smiling and showing his reflective sunglasses.
[EX A]: 5

[EX Q]: Sentence 1: A dog licks a baby. Sentence 2: A dog is licking a baby.
[EX A]:
5