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 Input:
Sentence 1: A man is hugging someone. Sentence 2: A man is taking a picture.

Ex Output:
0


Ex Input:
Sentence 1: They reported symptoms of fever, headache, rash and muscle aches. Sentence 2: Symptoms include a stiff neck, fever, headache and sensitivity to light.

Ex Output:
2


Ex Input:
Sentence 1: A rabbit is sniffing and pawing a stuffed rabbit. Sentence 2: A live rabbit is playing with a stuffed animal bunny.

Ex Output:

4