of bland hotels , highways , parking lots 
(ROOT (PP (IN of) (NP (NP (JJ bland) (NNS hotels)) (, ,) (NP (NNS highways)) (, ,) (NP (NN parking) (NNS lots)))))
(ROOT (PP (IN ) (NP (NP (JJ ) (NNS )) (, ) (NP (NNS )) (, ) (NP (NN ) (NNS )))))