that were imposed for the sake of commercial sensibilities 
(ROOT (S (NP (DT that)) (VP (VBD were) (VP (VBN imposed) (PP (IN for) (NP (NP (DT the) (NN sake)) (PP (IN of) (NP (JJ commercial) (NNS sensibilities)))))))))
(ROOT (S (NP (DT )) (VP (VBD ) (VP (VBN ) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (JJ ) (NNS )))))))))