angela gheorghiu as famous prima donna floria tosca , roberto alagna as her lover mario cavaradossi , and ruggero as the villainous , lecherous police chief scarpia , all sing beautifully and act adequately . 
(ROOT (S (NP (NP (NP (FW angela) (FW gheorghiu)) (PP (IN as) (NP (NML (JJ famous) (FW prima) (FW donna)) (FW floria) (FW tosca)))) (, ,) (NP (NP (FW roberto) (FW 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)))) (, ,)) (NP (DT all)) (VP (VP (VB sing) (ADVP (RB beautifully))) (CC and) (VP (VB act) (ADVP (RB adequately)))) (. .)))
(ROOT (S (NP (NP (NP (FW ) (FW )) (PP (IN ) (NP (NML (JJ ) (FW ) (FW )) (FW ) (FW )))) (, ) (NP (NP (FW ) (FW )) (PP (IN ) (NP (NP (PRP$ ) (NN )) (NP (FW ) (NNP ))))) (, ) (CC ) (NP (NP (NNP )) (PP (IN ) (NP (DT ) (JJ ) (, ) (JJ ) (NML (NN ) (NN )) (NN )))) (, )) (NP (DT )) (VP (VP (VB ) (ADVP (RB ))) (CC ) (VP (VB ) (ADVP (RB )))) (. )))