Individual #Lake_Chad__Chad  a lake in north central Africa; fed by the Shari river
  instance of:  lake
  part of:  Africa  the second largest continent; located south of Europe and bordered to the west by the South Atlantic and to the east by the India Ocean
     part of:  eastern_hemisphere__easternhemisphere__orient  the hemisphere that includes Eurasia and Africa and Australia

No statement uses or specializes Lake_Chad; click here to add one.