conjured up only 10 minutes prior to filming 
(ROOT (VP (VBN conjured) (PRT (RP up)) (NP (NP (QP (RB only) (CD 10)) (NNS minutes)) (PP (JJ prior) (PP (IN to) (NP (NN filming)))))))
(ROOT (VP (VBN ) (PRT (RP )) (NP (NP (QP (RB ) (CD )) (NNS )) (PP (JJ ) (PP (IN ) (NP (NN )))))))