def sentences(total)
      list = []
      total.times do
        word_count = rand(word_count_range_in_a_sentence)
        sentence_len = word_count.times.inject(0){ |sum| sum + rand(char_count_range_in_a_word) }
        sentence_key = bsearch(sentence_map_keys, sentence_len)
        unless sentence_key
          sentence_key = sentence_map.keys.min
        end
        list << sentence_map[sentence_key].sample
      end
      return list.join(@line_break)
    end
def sentences(total)
      list = []
      total.times do
        word_count = rand(word_count_range_in_a_sentence)
        sentence_len = word_count.times.inject(0){ |sum| sum + rand(char_count_range_in_a_word) }
        sentence_key = bsearch(sentence_map_keys, sentence_len)
        unless sentence_key
          sentence_key = sentence_map.keys.min
        end
        list << sentence_map[sentence_key].sample
      end
      return list.join(@line_break)
    end
return rondom sentences from word resource

 @param [Fixnum] total count of sentence
 @return [String] words