drink = input("What's your favourite drink? ")

if drink == "Water" or "water" :
    print( "That's a healthy choice!")

if drink == "Coca-Cola" or "coke" :
    print( "Those have a lot of sugar!")

if drink == "Coffee" :
    print( "Too many of those is bad for you.")
else :
    print( "I don't know what that is!")