not-so-bright mother and daughter 
(ROOT (NP (ADJP (RB not) (HYPH -) (RB so) (HYPH -) (JJ bright)) (NN mother) (CC and) (NN daughter)))
(ROOT (NP (ADJP (RB ) (HYPH ) (RB ) (HYPH ) (JJ )) (NN ) (CC ) (NN )))