( ( Ionic liquids ) ( ( are ( ( ionic compounds ) ( with ( low ( melting points ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Ionic) (NNS liquids)) (VP (VBP are) (NP (NP (JJ ionic) (NNS compounds)) (PP (IN with) (NP (JJ low) (NN melting) (NNS points))))) (. .)))
Ionic liquids are ionic compounds with low melting points.
(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))))) (. .)))