Assertion: oxygen | /r/HasProperty | element
Facets:
Source sentences:
text: Oxygen itself is an element, # 8 in the periodic table.
text: Oxygen the element (atom) is made up of 8 protons with between 4 to 20 neutrons (only stable with 8, 9, or 10 neutrons though), and surrounded by 8 electrons, + or - 1 or 2 according to ionisation state.
text: Oxygen, one of the elements indispensable for life.
text: No because Oxygen is an element and it only contains atoms of Oxygen and nothing else, no Hydrogen at all.
text: Oxygen is an element that you can live with” and exercise with.