it holds up in an era in which computer-generated images are the norm 
(ROOT (S (NP (PRP it)) (VP (VBZ holds) (PRT (RP up)) (PP (IN in) (NP (NP (DT an) (NN era)) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (ADJP (NN computer) (HYPH -) (VBN generated)) (NNS images)) (VP (VBP are) (NP (DT the) (NN norm))))))))))
(ROOT (S (NP (PRP )) (VP (VBZ ) (PRT (RP )) (PP (IN ) (NP (NP (DT ) (NN )) (SBAR (WHPP (IN ) (WHNP (WDT ))) (S (NP (ADJP (NN ) (HYPH ) (VBN )) (NNS )) (VP (VBP ) (NP (DT ) (NN ))))))))))