code: public String getPhrase(final String _key)
          throws EFapsException
      {
          final Phrase phrase = this.key2Phrase.get(_key);
          return phrase == null ? null : phrase.getPhraseValue(getCurrentInstance());
      }
docs: Get the String representation of a phrase.
  
  @param _key key to the phrase
  @return String representation of the phrase
  @throws EFapsException on error