I'm not interested in tactics, Al.
( I ( ( ( 'm not ) ( interested ( in ( ( tactics , ) Al. ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP 'm) (RB not) (ADJP (JJ interested) (PP (IN in) (NP (NP (NNS tactics)) (, ,) (NP (NNP Al.)))))) (. .)))
I am very interested in tactics, Al. 
( I ( ( am ( very ( interested ( in ( ( tactics , ) Al. ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP am) (ADJP (RB very) (JJ interested) (PP (IN in) (NP (NP (NNS tactics)) (, ,) (NP (NNP Al.)))))) (. .)))