of your seat , tense with suspense 
(ROOT (S (PP (IN of) (NP (PRP$ your) (NN seat))) (, ,) (ADJP (JJ tense) (PP (IN with) (NP (NN suspense))))))
(ROOT (S (PP (IN ) (NP (PRP$ ) (NN ))) (, ) (ADJP (JJ ) (PP (IN ) (NP (NN ))))))