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.

Input: Consider Input: Sentence 1: Two people are riding a motorcycle. Sentence 2: Two people are riding a bike.

Output: 2


Input: Consider Input: Sentence 1: A young boy laying on a sofa with a dog. Sentence 2: A small boy laying on a sofa with a dog.

Output: 5


Input: Consider Input: Sentence 1: But butterflies exposed to an earlier light cycle, from 1am to 1pm, orientated themselves towards the south-east. Sentence 2: But butterflies housed under an earlier light cycle, 1 a.m. to 1 p.m., flew toward the southeast.


Output: 5