like a promising work-in-progress 
(ROOT (PP (IN like) (NP (NP (DT a) (JJ promising) (NN work)) (HYPH -) (PP (IN in) (HYPH -) (NP (NN progress))))))
(ROOT (PP (IN ) (NP (NP (DT ) (JJ ) (NN )) (HYPH ) (PP (IN ) (HYPH ) (NP (NN ))))))