question: Which country Jochi's mother is from?
context: Title: Jochi
  Passage: Jochi (also spelled Djochi, Jöchi and Juchi; c. 1182– February 1227) was a Mongolian army commander who was the eldest son of Genghis Khan, and presumably one of the four sons by his principal wife Börte, though issues concerning his paternity followed him throughout his life. An accomplished military leader, he participated in his father's conquest of Central Asia, along with his brothers and uncles.
  Title: Börte
  Passage: Börte (simply Borte, also Börte Üjin; Cyrillic: Бөртэ үжин; c. 1161–1230) was the first wife of Temüjin, who became Genghis Khan, the founder of the Mongol Empire. Börte became the head of the first Court of Genghis Khan, and Grand Empress of his Empire. Little is known about the details of her early life, but she was betrothed to Genghis at a young age, married at seventeen, and then kidnapped by a rival tribe. Her husband’s daring rescue of her may have been one of the key events that started him on his path to becoming a conqueror. She gave birth to four sons and five daughters, who, along with their own descendants, were the key bloodline that further expanded the Mongol Empire.
answer: Mongol Empire
citations: Jochi Börte