as famous prima donna floria tosca , roberto alagna as her lover mario cavaradossi , and ruggero as the villainous , lecherous police chief scarpia , 
(ROOT (PP (IN as) (NP (NP (JJ famous) (NML (FW prima) (FW donna)) (FW floria) (FW tosca)) (, ,) (NP (NP (FW roberto) (NNP alagna)) (PP (IN as) (NP (NP (PRP$ her) (NN lover)) (NP (FW mario) (NNP cavaradossi))))) (, ,) (CC and) (NP (NP (NNP ruggero)) (PP (IN as) (NP (DT the) (JJ villainous) (, ,) (JJ lecherous) (NML (NN police) (NN chief)) (NN scarpia))))) (, ,)))
(ROOT (PP (IN ) (NP (NP (JJ ) (NML (FW ) (FW )) (FW ) (FW )) (, ) (NP (NP (FW ) (NNP )) (PP (IN ) (NP (NP (PRP$ ) (NN )) (NP (FW ) (NNP ))))) (, ) (CC ) (NP (NP (NNP )) (PP (IN ) (NP (DT ) (JJ ) (, ) (JJ ) (NML (NN ) (NN )) (NN ))))) (, )))