class_docstr: Thin wrapper around CMUDict data. http://www.speech.cs.cmu.edu/cgi-bin/cmudict
code: def get_arpabet(word, cmudict, punctuation_symbols):
      first_symbol, last_symbol = "", ""
      if word and word[0] in punctuation_symbols:
          first_symbol = word[0]
          word = word[1:]
      if word and word[-1] in punctuation_symbols:
          last_symbol = word[-1]
          word = word[:-1]
      arpabet = cmudict.lookup(word)
      if arpabet is not None:
          return first_symbol + "{%s}" % arpabet[0] + last_symbol
      return first_symbol + word + last_symbol
  
imports: import re
label_desc: Use image node_id 4 for calling the CMUDict obj's underlying member method code with example usage: obj.get_arpabet(word, cmudict, punctuation_symbols) and returns: unknown, unknown