a shock-you-into-laughter intensity 
(ROOT (NP (DT a) (NML (S (VP (NN shock) (HYPH -) (NP (PRP you)) (HYPH -) (PP (IN into) (HYPH -) (NP (NN laughter)))))) (NN intensity)))
(ROOT (NP (DT ) (NML (S (VP (NN ) (HYPH ) (NP (PRP )) (HYPH ) (PP (IN ) (HYPH ) (NP (NN )))))) (NN )))