Yes, sir.
( Yes ( , ( sir . ) ) )
(ROOT (FRAG (INTJ (UH Yes)) (, ,) (ADVP (RB sir)) (. .)))
That would be affirmative sir. 
( That ( ( would ( be ( affirmative sir ) ) ) . ) )
(ROOT (S (NP (DT That)) (VP (MD would) (VP (VB be) (NP (JJ affirmative) (NN sir)))) (. .)))