Write a piece of code that reads a shorthand text description of a color and prints the longer equivalent. Acceptable color names are B for Blue , G for Green , and R for Red . If the user types something other than B , G , or R , the program should print an error message. Make your program case-insensitive so that the user can type an uppercase or lowercase letter. Here are some example executions:

What color do you want? B You have chosen Blue. What color do you want? g You have chosen Green. What color do you want? Bork Unknown color: Bork