that holds up well after two decades 
(ROOT (S (NP (DT that)) (VP (VBZ holds) (PRT (RP up)) (ADVP (RB well)) (PP (IN after) (NP (CD two) (NNS decades))))))
(ROOT (S (NP (DT )) (VP (VBZ ) (PRT (RP )) (ADVP (RB )) (PP (IN ) (NP (CD ) (NNS ))))))