( Scientists ( ( can ( image ( ( the ( solid ( inner core ) ) ) ( ( using energy ) ( from ( ( earthquakes , ) ( known ( as ( seismic waves ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Scientists)) (VP (MD can) (VP (VB image) (NP (NP (DT the) (JJ solid) (JJ inner) (NN core)) (VP (VBG using) (NP (NN energy)) (PP (IN from) (NP (NP (NNS earthquakes)) (, ,) (VP (VBN known) (PP (IN as) (NP (JJ seismic) (NNS waves)))))))))) (. .)))
Scientists can image the solid inner core using energy from earthquakes, known as seismic waves.
(ROOT (S (NP (JJ Seismic) (NNS waves)) (VP (VBP prove) (NP (NP (DT the) (JJ inner) (NN core)) (SBAR (S (NP (PRP it)) (VP (VBZ is) (ADJP (JJ solid))))))) (. .)))