so-five-minutes-ago pop music 
(ROOT (FRAG (ADJP (LST (RB so) (HYPH -) (NP (CD five) (HYPH -) (NNS minutes))) (HYPH -) (RB ago)) (NP (NN pop) (NN music))))
(ROOT (FRAG (ADJP (LST (RB ) (HYPH ) (NP (CD ) (HYPH ) (NNS ))) (HYPH ) (RB )) (NP (NN ) (NN ))))