Premise: Burundi . The population density of around 315 people per square kilometre ( 753 per sq mi ) is the second highest in Sub-Saharan Africa . East Africa or Eastern Africa is the easterly region of the African continent , variably defined by geography or geopolitics . Sub-Saharan Africa is , geographically , the area of the continent of Africa that lies south of the Sahara .
Hypothesis: Burundi is part of Africa.
Label: ENTAILMENT