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.

Example Input: Sentence 1: Osama Bin Laden Wives to Be Jailed Sentence 2: Osama Bin Laden movie to be filmed in India
Example Output: 1

Example Input: Sentence 1: The young rider takes a ride on the brown horse. Sentence 2: A young female rider on a brown horse.
Example Output: 4

Example Input: Sentence 1: A women sitting at a table drinking with a basketball picture in the background. Sentence 2: A woman in a sari drinks something while sitting at a table.
Example Output:
3