( ( ( ( ( VA : ) ( ( Veterans ' ) ( Administration WBFP ) ) ) : ) ( ( ( Wood-Burning FirePlace ) ( -LRB- ( and ( ( ( most fireplaces ) ( do ( burn wood ) ) ) -RRB- ) ) ) ) ( ( x : ) ( ( ( Used ( in ( an example ) ) ) : ) 12x18 ) ) ) ) . )
(ROOT (NP (NP (NP (NNP VA)) (: :) (NP (NP (NNP Veterans) (POS ')) (NNP Administration) (NNP WBFP))) (: :) (NP (NP (NP (NNP Wood-Burning) (NNP FirePlace)) (PRN (-LRB- -LRB-) (CC and) (S (NP (JJS most) (NNS fireplaces)) (VP (VBP do) (VP (VB burn) (NP (NN wood))))) (-RRB- -RRB-))) (NP (NP (SYM x)) (: :) (S (S (VP (VBN Used) (PP (IN in) (NP (DT an) (NN example))))) (: :) (S (VP (VBG 12x18)))))) (. .)))
VA: Veterans' Administration WBFP: Wood-Burning FirePlace (and most fireplaces do burn wood) x: Used in an example: 12x18.
(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))))))) (. .)))