Assertion: magnesium carbonate | /r/HasAspect | two classes
Facets:
Source sentences:
text: The magnesium carbonates may be divided into two classes: magnesium carbonate, MgCO 3 XH 2 O and magnesium hydroxyl carbonate (Mg(CO 3 )
text: The magnesium carbonates may be divided into two classes: magnesium carbonate, MgC0 3.