( ( This ( `` ( prohibition '' ) ) ) ( merely ( ( ( substitutes ( ( one form ) ( of exploitation ) ) ) ( for ( ( another , ) ( which ( makes ( it ( ( different ( from ( the ( above example ) ) ) ) ( concerning ( burn experiments ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (DT This) (`` ``) (NN prohibition) ('' '')) (ADVP (RB merely)) (VP (VBD substitutes) (NP (NP (CD one) (NN form)) (PP (IN of) (NP (NN exploitation)))) (PP (IN for) (NP (NP (DT another)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ makes) (S (NP (PRP it)) (ADJP (JJ different) (PP (IN from) (NP (DT the) (JJ above) (NN example)))) (S (VP (VBG concerning) (NP (JJ burn) (NNS experiments))))))))))) (. .)))
This "prohibition" merely substitutes one form of exploitation for another, which makes it different from the above example concerning burn experiments.
(ROOT (S (NP (NNP Wood) (NNP burning)) (VP (VBZ is) (NP (NP (DT an) (NN example)) (PP (IN of) (NP (NP (DT a) (JJ different) (NN substance)) (VP (VBG being) (VP (VBN formed))))))) (. .)))