Write a class example() such that it has a method that gives the difference between the size of strings when the '-' (subtraction) symbol is used between the two objects of the class. additionally, implement a method that returns true if object 1 is greater than object 2 and false otherwise when the (> ) (greater than) symbol is used. for example: obj1 = example('this is a string') obj2 = example('this is another one') print(obj1 > obj2) false print(obj1-obj2) 3