liquid = input( "What is your favorite drink?" )
wa = "water"
cof = "coffee"
goat = "goat milk"
if liquid == wa :
    print( "What an excellent, healthy choice!" )

elif liquid == cof :
    print( "Careful... not too many cups, or you'll go nuts!" )

elif liquid == goat :
    print( "I've never heard of that!" )