Yes, sir.
( Yes ( , ( sir . ) ) )
(ROOT (FRAG (INTJ (UH Yes)) (, ,) (ADVP (RB sir)) (. .)))
They could never say no.
( They ( ( ( could never ) ( say no ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (MD could) (ADVP (RB never)) (VP (VB say) (INTJ (UH no)))) (. .)))