( ( ( ( ( Detonation ( ( The ( explosive burning ) ) ( of substances ) ) ) ( on heating ) ) , ) ( for ( ( example substances ) ( mixed ( with nitre ) ) ) ) ) . )
(ROOT (S (VP (VBN Detonation) (NP (NP (DT The) (JJ explosive) (NN burning)) (PP (IN of) (NP (NNS substances)))) (PP (IN on) (NP (NN heating))) (, ,) (PP (IN for) (NP (NP (NN example) (NNS substances)) (VP (VBN mixed) (PP (IN with) (NP (NN nitre))))))) (. .)))
Detonation The explosive burning of substances on heating, for example substances mixed with nitre.
(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))))))) (. .)))