it 's hard to imagine acting that could be any flatter . 
(ROOT (S (NP (NP (PRP it))) (VP (VBZ 's) (ADJP (JJ hard)) (S (VP (TO to) (VP (VB imagine) (NP (NP (NN acting)) (SBAR (WHNP (DT that)) (S (VP (MD could) (VP (VB be) (ADJP (DT any) (JJR flatter))))))))))) (. .)))
(ROOT (S (NP (NP (PRP ))) (VP (VBZ ) (ADJP (JJ )) (S (VP (TO ) (VP (VB ) (NP (NP (NN )) (SBAR (WHNP (DT )) (S (VP (MD ) (VP (VB ) (ADJP (DT ) (JJR ))))))))))) (. )))