print('goodbye!'if you try to run itpython will give you an error message that looks like thistraceback (most recent call last)file " :\python \spam py"line in saygoodbye(nameerrorname 'saygoodbyeis not defined to fix thisput the function definition before the function calldef saygoodbye()print('goodbye!'saygoodbye(defining the choosecave(function def choosecave()line defines another function called choosecave(this function' code asks the player which cave they want to go ineither or cave 'while cave !' and cave !' 'this function needs to make sure the player typed or and not something else loop here will keep asking the player until they enter one of these two valid responses this is called input validation line creates new variable called cave and stores blank string in it then while loop begins on line the condition contains new operator you haven' seen before called and just like the or are mathematical operatorsand =or !are comparison operatorsthe and operator is boolean operator boolean operators boolean logic deals with things that are either true or false boolean operators compare values and evaluate to single boolean value post questions to