Um, I wish I could think more.
( Um ( , ( I ( ( wish ( I ( could ( think more ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Um)) (, ,) (NP (PRP I)) (VP (VBP wish) (SBAR (S (NP (PRP I)) (VP (MD could) (VP (VB think) (NP (JJR more))))))) (. .)))
I wish I could ponder more.
( I ( ( wish ( I ( could ( ponder more ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP wish) (SBAR (S (NP (PRP I)) (VP (MD could) (VP (VB ponder) (NP (JJR more))))))) (. .)))