( ( ( Ionic bond ) ( ( A ( weak ( ( electrostatic attractive ) force ) ) ) ( between ( atoms ( of ( opposite charge ) ) ) ) ) ) . )
(ROOT (NP (NP (JJ Ionic) (NN bond)) (NP (NP (DT A) (JJ weak) (ADJP (JJ electrostatic) (JJ attractive)) (NN force)) (PP (IN between) (NP (NP (NNS atoms)) (PP (IN of) (NP (JJ opposite) (NN charge)))))) (. .)))
Ionic bond A weak electrostatic attractive force between atoms of opposite charge.
(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))))))) (. .)))