code: def combine_words(word1, word2):
      
      if word1 and word2 and is_consonant(word2[0]):
          onset, nucleus, coda = split_phonemes(word1[-1])
          if not coda:
              glue = join_phonemes(onset, nucleus, word2[0])
              return word1[:-1] + glue + word2[1:]
      return word1 + word2
docs: Combines two words.  If the first word ends with a vowel and the initial
      letter of the second word is only consonant, it merges them into one
      letter::
  
      >>> combine_words(u'다', u'ㄺ')
      닭
      >>> combine_words(u'가오', u'ㄴ누리')
      가온누리