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: Osama Bin Laden Wives to Be Jailed Sentence 2: Osama Bin Laden movie to be filmed in India

Output: 1


Input: Consider Input: Sentence 1: A girl is singing and playing a guitar. Sentence 2: A young man is singing while playing the guitar.

Output: 2


Input: Consider Input: Sentence 1: A little boy and a little girl playing together outside. Sentence 2: A young boy and a young girl walking towards each other


Output: 2