( ( ( Conduct ( electric current ) ) ( in ( ( both ( ( solid and ) liquid ) ) states ) ) ) . )
(ROOT (S (VP (VB Conduct) (NP (JJ electric) (NN current)) (PP (IN in) (NP (ADJP (DT both) (JJ solid) (CC and) (JJ liquid)) (NNS states)))) (. .)))
Conduct electric current in both solid and liquid states.
(ROOT (S (NP (NNP Ionic)) (VP (VBZ compounds) (NP (NP (JJS best) (NN conduct) (NN electricity)) (PP (IN in) (NP (DT a) (JJ liquid) (NN state))))) (. .)))