( ( This substance ) ( ( is ( what ( ( makes up ) ( ( the ( four elements ) ) ( of ( fire ( , ( earth ( , ( ( air and ) water ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This) (NN substance)) (VP (VBZ is) (SBAR (WHNP (WP what)) (S (VP (VBZ makes) (PRT (RP up)) (NP (NP (DT the) (CD four) (NNS elements)) (PP (IN of) (NP (NN fire) (, ,) (NN earth) (, ,) (NN air) (CC and) (NN water)))))))) (. .)))
This substance is what makes up the four elements of fire, earth, air and water.
(ROOT (S (NP (NNP Air)) (VP (MD can) (VP (VB be) (VP (VBN separated) (PP (IN into) (NP (JJ several) (NNS elements)))))) (. .)))