is simply not enough of interest onscreen 
(ROOT (VP (VBZ is) (ADVP (RB simply)) (RB not) (NP (NP (JJ enough)) (PP (IN of) (NP (NN interest)))) (ADVP (RB onscreen))))
(ROOT (VP (VBZ ) (ADVP (RB )) (RB ) (NP (NP (JJ )) (PP (IN ) (NP (NN )))) (ADVP (RB ))))