Question: What is the country of citizenship for the people of the Incan Empire?
Paraphrase: Where do people born in the Incan Empire hold citizenship?
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P27 wd:Q28573 . ?sbj wdt:P31 wd:Q5 } 
Answer: Manco Cápac, Atahualpa, Huascar, Huayna Capac, Cahuide, Juan Calchaquí, Vitacura, Angelina Añas Yupanqui, Francisca Coya