Assertion: water scarcity | /r/HasProperty | western issue
Facets:
value: historically
type: TEMPORAL
value: predominantly
type: DEGREE
Source sentences:
text: Water scarcity in the United States has predominantly been a Western issue, most severely impacting the Southwestern region.
text: While water scarcity has historically been a Western issue, it is spreading further east and is increasingly becoming a problem the whole nation must address.