Assertion: country's group | /r/HasProperty | nigeria
Facets:
value: prior to independence
type: TEMPORAL
Source sentences:
text: Because of its multitude of diverse, sometimes competing ethno-linguistic groups, Nigeria prior to independence was faced with sectarian tensions and violence, particularly in the oil-producing Niger Delta region, where both state and civilian forces employ varying methods of coercion in attempts to gain control over regional petroleum resources.