an irresistible blend of warmth and humor 
(ROOT (NP (NP (DT an) (JJ irresistible) (NN blend)) (PP (IN of) (NP (NN warmth) (CC and) (NN humor)))))
(ROOT (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (NN ) (CC ) (NN )))))