oh yes yeah yeah yeah that's true too that's true
( ( oh yes ) ( yeah ( ( yeah yeah ) ( that ( 's ( ( true too ) ( that ( 's true ) ) ) ) ) ) ) )
(ROOT (SINV (VBZ oh) (NP (RB yes)) (VP (VB yeah) (NP (NP (JJ yeah) (NN yeah)) (SBAR (WHNP (WDT that)) (S (VP (VBZ 's) (ADJP (JJ true) (RB too) (SBAR (WHNP (WDT that)) (S (VP (VBZ 's) (ADJP (JJ true)))))))))))))
It is true
( It ( is true ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (ADJP (JJ true)))))