( Matter ( , ( ( being ( ( ( a ( ( purely receptive ) capacity ) ) , ) ( while ( it ( ( ( is not ) yet ) substance ) ) ) ) ) ( , ( ( ( is still ) ( ( ( ( ( a ( substantial element ) ) , ) ( meant ( to ( ( blend ( with form ) ) ( into ( a ( natural unity ) ) ) ) ) ) ) , ) ( ( ( not accidental ) but ) essential ) ) ) . ) ) ) ) )
(ROOT (S (NP (NNP Matter)) (, ,) (S (VP (VBG being) (NP (NP (DT a) (ADJP (RB purely) (JJ receptive)) (NN capacity)) (, ,) (SBAR (IN while) (S (NP (PRP it)) (VP (VBZ is) (RB not) (ADVP (RB yet)) (NP (NN substance)))))))) (, ,) (VP (VBZ is) (ADVP (RB still)) (NP (NP (NP (DT a) (JJ substantial) (NN element)) (, ,) (VP (VBN meant) (S (VP (TO to) (VP (VB blend) (PP (IN with) (NP (NN form))) (PP (IN into) (NP (DT a) (JJ natural) (NN unity)))))))) (, ,) (ADJP (ADJP (RB not) (JJ accidental)) (CC but) (ADJP (JJ essential))))) (. .)))
Matter, being a purely receptive capacity, while it is not yet substance, is still a substantial element, meant to blend with form into a natural unity, not accidental but essential.
(ROOT (S (NP (NNS Elements)) (VP (VBP are) (NP (NP (JJ pure) (NNS substances)) (SBAR (WHNP (WDT that)) (S (VP (VBP make) (ADVP (RB up) (DT all) (NN matter))))))) (. .)))