a mediocre exercise in target demographics , unaware that it 's the butt of its own joke . 
(ROOT (FRAG (NP (NP (DT a) (JJ mediocre) (NN exercise)) (PP (IN in) (NP (NN target) (NNS demographics)))) (, ,) (ADJP (JJ unaware) (SBAR (IN that) (S (NP (PRP it)) (VP (VBZ 's) (NP (NP (DT the) (NN butt)) (PP (IN of) (NP (PRP$ its) (JJ own) (NN joke)))))))) (. .)))
(ROOT (FRAG (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (NN ) (NNS )))) (, ) (ADJP (JJ ) (SBAR (IN ) (S (NP (PRP )) (VP (VBZ ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (PRP$ ) (JJ ) (NN )))))))) (. )))