paint-by-numbers picture 
(ROOT (NP (NML (S (VP (NN paint) (HYPH -) (PP (IN by) (HYPH -) (NP (NNS numbers)))))) (NN picture)))
(ROOT (NP (NML (S (VP (NN ) (HYPH ) (PP (IN ) (HYPH ) (NP (NNS )))))) (NN )))