Wikipedia entity: Genocide of indigenous peoples
Topics: historical event; disease; death rate; Native American
Original sentence: He instead estimates that the death toll was caused by diseases like smallpox, which according to some estimates had an 80-90% fatality rate in Native American populations.
Quantified sentence: He instead estimates that the death toll was caused by diseases like smallpox, which according to some estimates had a high rate in Native American populations.
Quantifier: some
Percentage: 80%-90%
Specificity: unable