I admit I have knowledge of a certain name, but perhaps my knowledge ends there."
( ( ( ( ( ( I ( admit ( I ( have ( knowledge ( of ( a ( certain name ) ) ) ) ) ) ) ) , ) but ) ( perhaps ( ( my knowledge ) ( ends there ) ) ) ) . ) '' )
(ROOT (S (S (NP (PRP I)) (VP (VBP admit) (SBAR (S (NP (PRP I)) (VP (VBP have) (NP (NP (NN knowledge)) (PP (IN of) (NP (DT a) (JJ certain) (NN name))))))))) (, ,) (CC but) (S (ADVP (RB perhaps)) (NP (PRP$ my) (NN knowledge)) (VP (VBZ ends) (ADVP (RB there)))) (. .) ('' '')))
I won't tell you anything, because I don't know.
( I ( ( ( wo n't ) ( ( tell you ) ( ( anything , ) ( because ( I ( ( do n't ) know ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (MD wo) (RB n't) (VP (VB tell) (NP (PRP you)) (NP (NP (NN anything)) (, ,) (SBAR (IN because) (S (NP (PRP I)) (VP (VBP do) (RB n't) (VP (VB know)))))))) (. .)))