code: def check_denizen_labels_norris(text):
      
      err = "terms.denizen_labels.norris"
      msg = "Would you like '{}'?"
  
      preferences = [
          ["Mancunian",         ["Manchesterian"]],
          ["Mancunians",        ["Manchesterians"]],
          ["Vallisoletano",     ["Valladolidian"]],
          ["Wulfrunian",        ["Wolverhamptonian", "Wolverhamptonite"]],
          ["Novocastrian",      ["Newcastleite", "Newcastlite"]],
          ["Trifluvian",        [u"Trois-Rivièrester"]],
          ["Leodenisian",       ["Leedsian"]],
          ["Minneapolitan",     ["Minneapolisian"]],
          ["Hartlepudlian",     ["Hartlepoolian"]],
          ["Liverpudlian",      ["Liverpoolian"]],
          ["Haligonian",        ["Halifaxer"]],
          ["Varsovian",         ["Warsawer", "Warsawian"]],
          ["Providentian",      ["Providencian", "Providencer"]],
          ["Tridentine",        ["Trentian", "Trentonian"]],
      ]
  
      return preferred_forms_check(text, preferences, err, msg)
docs: Suggest the preferred forms.
  
      source:     Mary Norris
      source_url: http://nyr.kr/1rGienj