Assertion: compound's part | /r/HasProperty | the element oxygen
Facets:
Source sentences:
text: consist of two or more different elements and/or compounds - physically intermingled, can be separated into their constituent parts by physical means (e.g. distilation of liquids or seperating magnetic and non-magnetic solids using a magnet), and have many of the properties of their constituent parts (e.g. the element 'oxygen' is part of the mixture 'air' and some of the properties of air are due to the oxygen, albeit somewhat reduced compared with pure oxygen due to the presence of the other constituents of the mixture called 'air').