a jaunt down memory lane for teens 
(ROOT (NP (NP (DT a) (NN jaunt)) (PP (RP down) (NP (NN memory) (NN lane))) (PP (IN for) (NP (NNS teens)))))
(ROOT (NP (NP (DT ) (NN )) (PP (RP ) (NP (NN ) (NN ))) (PP (IN ) (NP (NNS )))))