(S (S (QT (DQL ``) (QTC (S (NP (BASENP (NN One) (NN thing)) (SBAR (WHNP (WDT that)) (S (VP (VBZ 's) (VP (ADVP (RB perhaps)) (VP (ADVP (RB not) (RB always)) (VBN realized))))))) (VP (VBZ is) (SBAR (IN that) (S (NP (BASENP (DT the) (NN amount)) (PP (IN of) (NP (BASENP (NN waste)) (SBAR (WHNP (WDT that)) (S (VP (VBZ comes) (PP (IN out) (PP (IN of) (BASENP (DT a) (JJ typical) (NN plant)))))))))) (VP (VBZ is) (NP (BASENP (QP (RB around) (NN 30)) (NNS tonnes)) (BASENP (DT a) (NN year)))))))) (COMMA ,)) (DQR '')) (S (BASENP (PRP he)) (VP (VBD said)))) (PERIOD .))