's just plain lurid when it is n't downright silly . 
(ROOT (S (VP (VBZ 's) (ADJP (RB just) (JJ plain) (JJ lurid)) (SBAR (WHADVP (WRB when)) (S (NP (PRP it)) (VP (VBZ is) (RB n't) (ADJP (RB downright) (JJ silly)))))) (. .)))
(ROOT (S (VP (VBZ ) (ADJP (RB ) (JJ ) (JJ )) (SBAR (WHADVP (WRB )) (S (NP (PRP )) (VP (VBZ ) (RB ) (ADJP (RB ) (JJ )))))) (. )))