spirals downward , and thuds to the bottom of the pool with an utterly incompetent conclusion . 
(ROOT (S (VP (VP (VBZ spirals) (ADVP (RB downward))) (, ,) (CC and) (VP (VBZ thuds) (PP (IN to) (NP (NP (DT the) (NN bottom)) (PP (IN of) (NP (DT the) (NN pool))))) (PP (IN with) (NP (DT an) (ADJP (RB utterly) (JJ incompetent)) (NN conclusion))))) (. .)))
(ROOT (S (VP (VP (VBZ ) (ADVP (RB ))) (, ) (CC ) (VP (VBZ ) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (DT ) (NN ))))) (PP (IN ) (NP (DT ) (ADJP (RB ) (JJ )) (NN ))))) (. )))