( Ions ( ( are ( atoms ( with ( a ( ( ( positive or ) negative ) ( electrical charge ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Ions)) (VP (VBP are) (NP (NP (NNS atoms)) (PP (IN with) (NP (DT a) (ADJP (JJ positive) (CC or) (JJ negative)) (JJ electrical) (NN charge))))) (. .)))
Ions are atoms with a positive or negative electrical 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))))))))) (. .)))