talky , artificial and opaque ... an interesting technical exercise , but a tedious picture . 
(ROOT (FRAG (ADJP (JJ talky) (, ,) (JJ artificial) (CC and) (JJ opaque)) (, ...) (NP (NP (DT an) (JJ interesting) (JJ technical) (NN exercise)) (, ,) (CC but) (NP (DT a) (JJ tedious) (NN picture))) (. .)))
(ROOT (FRAG (ADJP (JJ ) (, ) (JJ ) (CC ) (JJ )) (, ) (NP (NP (DT ) (JJ ) (JJ ) (NN )) (, ) (CC ) (NP (DT ) (JJ ) (NN ))) (. )))