Ah, triple pig! 
( Ah ( , ( ( triple pig ) ! ) ) )
(ROOT (FRAG (INTJ (UH Ah)) (, ,) (NP (JJ triple) (NN pig)) (. !)))
The pig tripled.
( ( The pig ) ( tripled . ) )
(ROOT (S (NP (DT The) (NN pig)) (VP (VBD tripled)) (. .)))