@prefix schema: <https://schema.org/> .
@prefix af: <https://anchorfact.org/ns#> .

<https://anchorfact.org/kb/history/inca-empire>
  a schema:TechArticle ;
  schema:headline "Inca Empire" ;
  schema:url <https://anchorfact.org/history/inca-empire/> ;
  af:status "public" ;
  af:confidence "medium" ;
  af:confidenceScore "0.83" ;
  af:confidenceBasis "verified_sources" ;
  af:generationMethod "ai_structured" .

<https://anchorfact.org/kb/history/inca-empire>
  schema:citation <https://www.britannica.com/topic/Inca> ;
  af:sourceTier "B" .

<https://anchorfact.org/kb/history/inca-empire>
  schema:citation <https://whc.unesco.org/en/list/1459/> ;
  af:sourceTier "A" .

<https://anchorfact.org/kb/history/inca-empire>
  schema:citation <https://whc.unesco.org/en/list/274> ;
  af:sourceTier "A" .