acknowledges upfront that the plot makes no sense , 
(ROOT (S (VP (VBZ acknowledges) (S (S (ADJP (NN upfront)) (SBAR (IN that) (S (NP (DT the) (NN plot)) (VP (VBZ makes) (NP (DT no) (NN sense)))))))) (, ,)))
(ROOT (S (VP (VBZ ) (S (S (ADJP (NN )) (SBAR (IN ) (S (NP (DT ) (NN )) (VP (VBZ ) (NP (DT ) (NN )))))))) (, )))