Assertion: potassium chloride | /r/ObjectUse | used in the united states
Facets:
value: for lethal injection executions
type: PURPOSE
Source sentences:
text: Potassium chloride is used in the United States for lethal injection executions.
text: Most potassium chloride used in the United States is mined from underground deposits in Saskatchewan, although some are mined in the western United States.