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: A young boy in a brown jacket playing with snow. Sentence 2: Two dogs are playing in the snow.

Output: 1


Input: Consider Input: Sentence 1: A black dog is biting a light brown dogs ear in a playful manner. Sentence 2: A black dog playfully bits another dog in a living room setting

Output: 4


Input: Consider Input: Sentence 1: A little boy is playing a keyboard. Sentence 2: A boy is playing key board.


Output: 4