david_handbook:
  user: david
  book: handbook
  level: editor

david_manual:
  user: david
  book: manual
  level: editor

jason_handbook:
  user: jason
  book: handbook
  level: editor

jason_manual:
  user: jason
  book: manual
  level: editor

jz_handbook:
  user: jz
  book: handbook
  level: reader

jz_manual:
  user: jz
  book: manual
  level: reader

kevin_handbook:
  user: kevin
  book: handbook
  level: editor