( ( ( The moon ) ( of ( planet Pluto ) ) ) ( ( is ( called Charon ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN moon)) (PP (IN of) (NP (NN planet) (NNS Pluto)))) (VP (VBZ is) (VP (VBN called) (NP (NNP Charon)))) (. .)))
The moon of planet Pluto is called Charon.
(ROOT (S (NP (NNP Pluto)) (VP (VBZ is) (ADVP (RB now)) (VP (VBN called) (NP (NN dwarf) (NN planet)))) (. .)))