##Example 1

action = input("Please enter an action: ")
while action!="go" and action!="look" and action!="take" and action!="drop" and action!="inventory" and action!="quit":
    print("Action not recognized. Try again.")
    action = input("Please enter an action: ")
if action=="go" or action=="look" or action=="take" or action=="drop" or action=="inventory" or action=="quit":
    print("Let's do this!")

#########################


##Example 2

command = str(input("Please enter an action: "))

while command!="go" and command!="look" and command!="take" and command!="drop" and command!="inventory" and command!="quit":
        print("Action not recognized. Try again.")
        command = str(input("Please enter an action: "))

print("Let's do this!")

#########################


##Example 3

command=["go", "look", "take","drop", "inventory","quit"]

action=input("Please enter an action: ")

    
while not action in command:
    print("Try again")
    action=input("Please enter an action: ")

print("Let's do this")