biggest husband-and-wife disaster 
(ROOT (NP (JJS biggest) (NML (NML (NN husband)) (HYPH -) (CC and) (HYPH -) (NN wife)) (NN disaster)))
(ROOT (NP (JJS ) (NML (NML (NN )) (HYPH ) (CC ) (HYPH ) (NN )) (NN )))