( Wood ( ( has ( been ( burned ( in ( various ( ( forms and ) environments ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Wood)) (VP (VBZ has) (VP (VBN been) (VP (VBN burned) (PP (IN in) (NP (JJ various) (NNS forms) (CC and) (NNS environments)))))) (. .)))
Wood has been burned in various forms and environments.
(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))))))) (. .)))