Vicky is quite the small wonder. Most people don't even realize she's not a real girl, but a robot living amongst us$.$ Sure, if you stick around her home for a while you might see her creator open up her back and make a few tweaks and even see her recharge in the closet instead of sleeping in a bed. In this kata, we're going to help Vicky keep track of the words she's learning. Write a function, learnWord$($word$)($ LearnWord$($word$)$ in C# $)$ which is a method of the Robot object. The function should report back whether the word is now stored, or if she already knew the word.