( ( Ion ( ( An ion ) ( is ( ( an ( ( electrically charged ) ( ( atom or ) group ) ) ) ( of atoms ) ) ) ) ) . )
(ROOT (S (VP (VB Ion) (SBAR (S (NP (DT An) (NN ion)) (VP (VBZ is) (NP (NP (DT an) (ADJP (ADVP (RB electrically)) (VBN charged)) (NN atom) (CC or) (NN group)) (PP (IN of) (NP (NNS atoms)))))))) (. .)))
Ion An ion is an electrically charged atom or group of atoms.
(ROOT (S (NP (DT An) (NN ion)) (VP (VBZ is) (NP (NP (DT an) (NN atom) (CC or) (NN group)) (PP (IN of) (NP (NP (VBN bonded) (NNS atoms)) (SBAR (WHNP (WDT that)) (S (VP (VBZ has) (NP (DT a) (ADJP (JJ positive) (CC or) (JJ negative)) (NN charge))))))))) (. .)))