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 large bird standing on a table picks up a plastic glass containing liquid and places it in a bowl of something. Sentence 2: A bird picks up a plastic cup containing a liquid with it's beak and puts the cup into a bowl.

Ex Output:
4


Ex Input:
Sentence 1: A small plane parked at an airfield with a cloudy sky overhead. Sentence 2: A small white plane parked in an airport on a cloudy day.

Ex Output:
5


Ex Input:
Sentence 1: indian nationals constitute the largest number of foreign inmates in nepal prisons. Sentence 2: drug traffickers from foreign countries constitute the largest percentage of foreign inmates in nepal.

Ex Output:

2