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