in the pantheon of the best of the swashbucklers 
(ROOT (PP (IN in) (NP (NP (DT the) (NN pantheon)) (PP (IN of) (NP (NP (DT the) (JJS best)) (PP (IN of) (NP (DT the) (NNS swashbucklers))))))))
(ROOT (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NP (DT ) (JJS )) (PP (IN ) (NP (DT ) (NNS ))))))))