on the wonderful acting clinic put on by spader and gyllenhaal 
(ROOT (PP (IN on) (NP (NP (DT the) (JJ wonderful) (NN acting) (NN clinic)) (VP (VBN put) (PRT (RP on)) (PP (IN by) (NP (NN spader) (CC and) (NN gyllenhaal)))))))
(ROOT (PP (IN ) (NP (NP (DT ) (JJ ) (NN ) (NN )) (VP (VBN ) (PRT (RP )) (PP (IN ) (NP (NN ) (CC ) (NN )))))))