to keep the extremes of screwball farce and blood-curdling family intensity on one continuum 
(ROOT (S (VP (TO to) (VP (VB keep) (NP (NP (DT the) (NNS extremes)) (PP (IN of) (NP (NP (NN screwball) (NN farce)) (CC and) (NP (ADJP (NN blood) (HYPH -) (VBG curdling)) (NN family) (NN intensity))))) (PP (IN on) (NP (CD one) (NN continuum)))))))
(ROOT (S (VP (TO ) (VP (VB ) (NP (NP (DT ) (NNS )) (PP (IN ) (NP (NP (NN ) (NN )) (CC ) (NP (ADJP (NN ) (HYPH ) (VBG )) (NN ) (NN ))))) (PP (IN ) (NP (CD ) (NN )))))))