in looking at the comic effects of jealousy 
(ROOT (PP (IN in) (S (VP (VBG looking) (PP (IN at) (NP (NP (DT the) (NN comic) (NNS effects)) (PP (IN of) (NP (NN jealousy)))))))))
(ROOT (PP (IN ) (S (VP (VBG ) (PP (IN ) (NP (NP (DT ) (NN ) (NNS )) (PP (IN ) (NP (NN )))))))))