plots that never quite gel 
(ROOT (NP (NP (NNS plots)) (SBAR (WHNP (WDT that)) (S (ADVP (RB never)) (ADVP (RB quite)) (VP (NN gel))))))
(ROOT (NP (NP (NNS )) (SBAR (WHNP (WDT )) (S (ADVP (RB )) (ADVP (RB )) (VP (NN ))))))