expensive  hardcover  novel     nocolor  popular  long
medium     softcover  textbook  nocolor  popular  long
cheap      softcover  novel     nocolor  popular  short
medium     hardcover  textbook  color    popular  short
medium     hardcover  journal   color    unknown  short
cheap      softcover  textbook  nocolor  unknown  short
expensive  hardcover  journal   color    popular  long
cheap      softcover  novel     color    unknown  short

hardcover  novel     nocolor  unkown   long
hardcover  journal   color    popular  short
softcover  textbook  color    popular  long
softcover  novel     nocolor  unknown  short