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: in  Foxe basin was frozen. Sentence 2: Foxe was mostly frozen.

Output: 4


Input: Consider Input: Sentence 1: A dog emerges form the water with a stick in its mouth. Sentence 2: A dog runs toward the camera with a stick in its mouth.

Output: 2


Input: Consider Input: Sentence 1: A snowboarder rides a snowboard down a railing beside a flight of steps. Sentence 2: A boy is grinding a skateboard down a concrete wall.


Output: 1