code: def sentence=(sentence)
        words = sentence.split(/\s+/)
        add_weight :count, :word, words.length unless words.length < 1
        words.each do |word|
          normalized_word = normalize_word word
          self.word       = normalized_word unless normalized_word == ''
        end
      end
docs: Analyze sentence
  
   Splits sentence with whitespace delimiter, adds weight for word count and analyzes each word
  
   @param [String] sentence