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

<https://anchorfact.org/kb/science/continental-drift>
  a schema:TechArticle ;
  schema:headline "Continental Drift" ;
  schema:url <https://anchorfact.org/science/continental-drift/> ;
  af:status "public" ;
  af:confidence "low" ;
  af:confidenceScore "0.83" ;
  af:confidenceBasis "verified_sources" ;
  af:generationMethod "ai_structured" .

<https://anchorfact.org/kb/science/continental-drift>
  schema:citation <https://www.britannica.com/science/continental-drift-geology> ;
  af:sourceTier "B" .

<https://anchorfact.org/kb/science/continental-drift>
  schema:citation <https://pubs.usgs.gov/gip/dynamic/historical.html> ;
  af:sourceTier "A" .

<https://anchorfact.org/kb/science/continental-drift>
  schema:citation <https://pubs.usgs.gov/gip/dynamic/understanding.html> ;
  af:sourceTier "A" .