a rip-off twice removed , modeled after ( seagal 's ) earlier copycat under siege , sometimes referred to as die hard on a boat . 
(ROOT (NP (NP (DT a) (NN rip) (HYPH -) (NN off)) (VP (VP (ADVP (RB twice)) (VBN removed)) (, ,) (VP (VBN modeled) (PP (IN after) (NP (NP (-LRB- -LRB-) (NP (NN seagal) (POS 's)) (-RRB- -RRB-) (JJR earlier) (NN copycat)) (PP (IN under) (NP (NN siege)))))) (, ,) (VP (ADVP (RB sometimes)) (VBN referred) (PP (IN to) (PP (IN as) (S (VP (VB die) (ADVP (RB hard)) (PP (IN on) (NP (DT a) (NN boat))))))))) (. .)))
(ROOT (NP (NP (DT ) (NN ) (HYPH ) (NN )) (VP (VP (ADVP (RB )) (VBN )) (, ) (VP (VBN ) (PP (IN ) (NP (NP (-LRB- ) (NP (NN ) (POS )) (-RRB- ) (JJR ) (NN )) (PP (IN ) (NP (NN )))))) (, ) (VP (ADVP (RB )) (VBN ) (PP (IN ) (PP (IN ) (S (VP (VB ) (ADVP (RB )) (PP (IN ) (NP (DT ) (NN ))))))))) (. )))