code: public static String sentences(int sentenceCount, boolean supplemental) {
          List<String> sentenceList = new ArrayList<String>();
          for (int i = 0; i < sentenceCount; i++) {
              sentenceList.add(sentence(3, supplemental, 6));
          }
  
          String sentenceString = StringUtils.join(sentenceList, " ");
          return sentenceString;
  
      }
docs: generate sentences
  
  @param sentenceCount number of sentences
  @param supplemental  if true add additional word to each word
  @return sentence string