hour-and-a-half-long commercial 
(ROOT (NP (ADJP (NP (NP (NN hour)) (, -) (CC and) (, -) (DT a) (HYPH -) (NN half)) (HYPH -) (JJ long)) (NN commercial)))
(ROOT (NP (ADJP (NP (NP (NN )) (, ) (CC ) (, ) (DT ) (HYPH ) (NN )) (HYPH ) (JJ )) (NN )))