Assertion: gunpowder's component | /r/HasProperty | difficult to find
Facets:
Source sentences:
text: In most cases, when making gunpowder, the key is to find a method to produce potassium nitrate, the component that is the most difficult to find in the wild.
text: In most cases, when making gunpowder, the key is to find a method to produce potassium nitrate, the component that is the most difficult to find in the wild.