( It ( ( is ( stored ( as ( ( a chemical ) ( with ( potential energy ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (VP (VBN stored) (PP (IN as) (NP (NP (DT a) (NN chemical)) (PP (IN with) (NP (JJ potential) (NN energy))))))) (. .)))
It is stored as a chemical with potential energy.
(ROOT (S (NP (NP (DT The) (NN energy)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (VP (VBN stored) (PP (IN in) (NP (NN matter)))))))) (VP (VBZ is) (VP (VBN called) (NP (NN potential)))) (. .)))