( ( ( Ionic bonds ) ( Ionic bonds ) ) ( ( ( are simply ) ( ( the ( attractive forces ) ) ( between ( oppositely-charged ions ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Ionic) (NNS bonds)) (NP (JJ Ionic) (NNS bonds))) (VP (VBP are) (ADVP (RB simply)) (NP (NP (DT the) (JJ attractive) (NNS forces)) (PP (IN between) (NP (JJ oppositely-charged) (NNS ions))))) (. .)))
Ionic bonds Ionic bonds are simply the attractive forces between oppositely-charged ions.
(ROOT (S (NP (DT A) (-LRB- -LRB-) (NN n) (-RRB- -RRB-) (NN chemical) (NN bond)) (VP (VBZ is) (NP (NP (DT a) (NN force)) (PP (IN of) (NP (NP (NN attraction)) (PP (IN between) (NP (NNS ions) (CC and) (NNS atoms))))))) (. .)))