stakes out the emotional heart of happy . 
(ROOT (S (VP (VBZ stakes) (PRT (RP out)) (NP (NP (DT the) (JJ emotional) (NN heart)) (PP (IN of) (NP (JJ happy))))) (. .)))
(ROOT (S (VP (VBZ ) (PRT (RP )) (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (JJ ))))) (. )))