( ( James ( River Coal ) ) ( ( acquired ( ( Shamrock Coal ) ( from ( Sun Coal ) ) ) ) . ) )
(ROOT (S (NP (NNP James) (NNP River) (NNP Coal)) (VP (VBD acquired) (NP (NP (NNP Shamrock) (NNP Coal)) (PP (IN from) (NP (NNP Sun) (NNP Coal))))) (. .)))
James River Coal acquired Shamrock Coal from Sun Coal.
(ROOT (S (S (NP (NNP Coal)) (VP (VBZ is) (ADJP (JJ nonrenewable)))) (, ,) (CC and) (S (NP (DT the) (NN sun)) (VP (VBZ is) (ADJP (JJ renewable) (SBAR (S (VP (VBZ is) (SBAR (WHADVP (WRB how)) (S (NP (NP (NN coal)) (CC and) (NP (DT the) (NN sun))) (VP (VBP compare) (PP (IN as) (NP (NP (NNS sources)) (PP (IN of) (NP (NN energy)))))))))))))) (. .)))