( ( All meat ) ( ( must ( be ( ( cooked ( on ( wood ( or ( wood ( burning substances ) ) ) ) ) ) only ) ) ) . ) )
(ROOT (S (NP (DT All) (NN meat)) (VP (MD must) (VP (VB be) (VP (VBN cooked) (PP (IN on) (NP (NN wood) (CC or) (NN wood) (NN burning) (NNS substances))) (ADVP (RB only))))) (. .)))
All meat must be cooked on wood or wood burning substances only.
(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))))))) (. .)))