be a power outage during your screening so you can get your money back 
(ROOT (S (VP (VB be) (NP (NP (DT a) (NN power) (NN outage)) (PP (IN during) (NP (PRP$ your) (NN screening)))) (SBAR (IN so) (S (NP (PRP you)) (VP (MD can) (VP (VB get) (NP (PRP$ your) (NN money)) (ADVP (RB back)))))))))
(ROOT (S (VP (VB ) (NP (NP (DT ) (NN ) (NN )) (PP (IN ) (NP (PRP$ ) (NN )))) (SBAR (IN ) (S (NP (PRP )) (VP (MD ) (VP (VB ) (NP (PRP$ ) (NN )) (ADVP (RB )))))))))