Assertion: gunpowder | /r/HasProperty | hardest-to-come-by component
Facets:
Source sentences:
text: More details on the creation of gunpowders hardest-to-come-by component, potassium nitrate (niter or saltpeter) can be gleaned from the two patents below.
text: More details on the creation of gunpowders hardest-to-come-by component, potassium nitrate (niter or saltpeter) can be gleaned from the two patents below.