Assertion: magnesium sulfate's magnesium | /r/AtLocation | combination
Facets:
value: naturally
type: MANNER
value: with other elements
type: OTHER
Source sentences:
text: Magnesium occurs naturally only in combination with other elements, where it invariably has a +2 oxidation state.
text: Magnesium occurs naturally only in combination with other elements, where it invariably has a +2 oxidation state.