( ( ECONOMY ( OF ( WOOD BURNING ) ) ) ( ( FACILITIES ( There ( are ( ( several ( successful examples ) ) ( of ( projects ( with ( wood burning ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP ECONOMY)) (PP (IN OF) (NP (NNP WOOD) (NNP BURNING)))) (VP (VBZ FACILITIES) (SBAR (S (NP (EX There)) (VP (VBP are) (NP (NP (JJ several) (JJ successful) (NNS examples)) (PP (IN of) (NP (NP (NNS projects)) (PP (IN with) (NP (NN wood) (NN burning)))))))))) (. .)))
ECONOMY OF WOOD BURNING FACILITIES There are several successful examples of projects with wood burning.
(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))))))) (. .)))