would require many sessions on the couch of dr. freud 
(ROOT (VP (MD would) (VP (VB require) (NP (NP (JJ many) (NNS sessions)) (PP (IN on) (NP (NP (DT the) (NN couch)) (PP (IN of) (NP (NNP dr.) (NNP freud)))))))))
(ROOT (VP (MD ) (VP (VB ) (NP (NP (JJ ) (NNS )) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NNP ) (NNP )))))))))