Assertion: pneumonic plague's mortality rate | /r/HasProperty | correlated with population density
Facets:
value: so africa
type: LOCATION
Source sentences:
text: China lost around half of its population, from around 123 million to around 65 million; Europe around one third of its population, from about 75 million to about 50 million; and Africa approximately ​1⁄ 8 of its population, from around 80 million to 70 million (mortality rates tended to be correlated with population density so Africa, being less dense overall, had the lowest death rate).