Individual #San'a__Sanaa__Sana  the capital and largest city of Yemen; on the central plateau
  instance of:  national_capital
  part of:  Yemen__Republic_of_Yemen  a republic on the southwestern corner of the Arabian Peninsula on the Indian Ocean; formed in 1990 when North Yemen and South Yemen merged
     part of:  Arabian_Peninsula__Arabia  a peninsula between the Red Sea and the Persian Gulf; strategically important for its oil resources
        part of:  Asia  the largest continent with 60% of the earth's population; it is joined to Europe on the west to form Eurasia; it is the site of some of the world's earliest civilizations
           part of:  Eurasia  the land mass formed by the continents of Europe and Asia
              part of:  eastern_hemisphere__easternhemisphere__orient  the hemisphere that includes Eurasia and Africa and Australia
              part of:  northern_hemisphere  the hemisphere north of the equator
        part of:  Mediterranean_region

No statement uses or specializes San'a; click here to add one.