your seat a couple of times 
(ROOT (NP (NP (PRP$ your) (NN seat)) (NP (NP (DT a) (NN couple)) (PP (IN of) (NP (NNS times))))))
(ROOT (NP (NP (PRP$ ) (NN )) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NNS ))))))