have you at the edge of your seat for long stretches 
(ROOT (VP (VBP have) (NP (PRP you)) (PP (IN at) (NP (NP (DT the) (NN edge)) (PP (IN of) (NP (PRP$ your) (NN seat))))) (PP (IN for) (NP (JJ long) (NNS stretches)))))
(ROOT (VP (VBP ) (NP (PRP )) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (PRP$ ) (NN ))))) (PP (IN ) (NP (JJ ) (NNS )))))