( Kansas ( , of ) )
(ROOT (FRAG (NP (NNP Kansas)) (, ,) (ADVP (IN of))))
Kansas, of
(ROOT (S (NP (NNP Coal)) (VP (MD can) (VP (VB be) (VP (VP (VBN mined) (PP (IN from) (NP (NN earth)))) (CC and) (VP (VBN used) (PP (IN as) (NP (DT an) (NN energy) (NN source))))))) (. .)))