( Conductivity ( of ( a ( crystalline solid ) ) ) )
(ROOT (FRAG (ADVP (RB Conductivity)) (PP (IN of) (NP (DT a) (JJ crystalline) (JJ solid)))))
Conductivity of a crystalline solid
(ROOT (S (NP (NP (DT The) (NN majority)) (PP (IN of) (NP (NNS solids)))) (VP (VBP are) (VP (VBG crystalline) (PP (IN in) (NP (NN nature))))) (. .)))