( Ions ( ( are ( ( ( atoms or ) molecules ) ( which ( carry ( a ( ( ( positive or ) negative ) charge ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Ions)) (VP (VBP are) (NP (NP (NNS atoms) (CC or) (NNS molecules)) (SBAR (WHNP (WDT which)) (S (VP (VBP carry) (NP (DT a) (ADJP (JJ positive) (CC or) (JJ negative)) (NN charge))))))) (. .)))
Ions are atoms or molecules which carry a positive or negative charge.
(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))))))))) (. .)))