( ( ( ( All materials ) , ) ( whether ( they ( contain ( ( ( ( one element ) or ) ( ( more ( than one ) ) element ) ) ( are ( ( made up ) ( of ( ( very small ) particles ) ) ) ) ) ) ) ) ) ( ( called atoms ) . ) )
(ROOT (S (NP (NP (DT All) (NNS materials)) (, ,) (SBAR (IN whether) (S (NP (PRP they)) (VP (VBP contain) (SBAR (S (NP (NP (CD one) (NN element)) (CC or) (NP (QP (JJR more) (IN than) (CD one)) (NN element))) (VP (VBP are) (VP (VBN made) (PRT (RP up)) (PP (IN of) (NP (ADJP (RB very) (JJ small)) (NNS particles))))))))))) (VP (VBD called) (NP (NNS atoms))) (. .)))
All materials, whether they contain one element or more than one element are made up of very small particles called atoms.
(ROOT (S (NP (PRP You)) (VP (VBP call) (NP (NP (NNS elements)) (SBAR (WHNP (WDT that)) (S (VP (VBP contain) (NP (NP (JJ only) (NNS atoms)) (PP (IN of) (NP (NP (CD one) (NN type)) (PP (IN of) (NP (NN element) (NN native) (NNS elements))))))))))) (. .)))