# prompt for one or two words and get the response
reply = input( 'Enter one or two words: ' )

# turn response into a list
list  = reply.split()

# get the length of the list
n = len( list )

# output whether they enter one or two words
if ( n == 1 ) :
    # list size is 1
    print( 'one word' )
else :
    # otherwise, list size is 2
    print( 'two words' ) 

# all done