succumbs to gravity and plummets to earth . 
(ROOT (S (VP (VP (VBZ succumbs) (PP (IN to) (NP (NN gravity)))) (CC and) (VP (VBZ plummets) (PP (IN to) (NP (NN earth))))) (. .)))
(ROOT (S (VP (VP (VBZ ) (PP (IN ) (NP (NN )))) (CC ) (VP (VBZ ) (PP (IN ) (NP (NN ))))) (. )))