Assertion: vitamin b12 | /r/HasProperty | the most used drug
Facets:
value: for supplementing b12
type: PURPOSE
Source sentences:
text: Cyanocobalamin has been the most used drug for supplementing B12, but this is only because it has been the most profitable substance to produce.
text: Cyanocobalamin has been the most used drug for supplementing B12, but this is only because it has been the most profitable substance to produce.