( Charcoal ( ( ( is just ) ( ( a ( ( partially burned ) form ) ) ( of wood ) ) ) . ) )
(ROOT (S (NP (NNP Charcoal)) (VP (VBZ is) (ADVP (RB just)) (NP (NP (DT a) (ADJP (RB partially) (JJ burned)) (NN form)) (PP (IN of) (NP (NN wood))))) (. .)))
Charcoal is just a partially burned form of wood.
(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))))))) (. .)))