Assertion: potassium | /r/HasProperty | metal
Facets:
value: with a soft texture
type: OTHER
Source sentences:
text: Potassium is a metal and is the seventh most abundant and makes up about 1.5 % by weight of the earth's crust.
text: Potassium is a metal with a soft texture and it has a silvery appearance when cut, which becomes tarnished as it oxidizes in air.