most frantic , virulent and foul-natured 
(ROOT (ADJP (ADJP (RBS most) (JJ frantic)) (, ,) (ADJP (JJ virulent)) (CC and) (ADJP (NN foul) (HYPH -) (JJ natured))))
(ROOT (ADJP (ADJP (RBS ) (JJ )) (, ) (ADJP (JJ )) (CC ) (ADJP (NN ) (HYPH ) (JJ ))))