'Of course.'
( ` ( ( ( Of course ) . ) ' ) )
(ROOT (S (`` `) (VP (VB Of) (NP (NN course))) (. .) ('' ')))
Yes, that's absolutely true.
( Yes ( , ( that ( ( 's ( absolutely true ) ) . ) ) ) )
(ROOT (S (INTJ (UH Yes)) (, ,) (NP (DT that)) (VP (VBZ 's) (ADJP (RB absolutely) (JJ true))) (. .)))