###Answer the question from the input provided. Please answer from input only.

###Input: Accounts of Genghis Khan's life are marked by claims of a series of betrayals and conspiracies. These include rifts with his early allies such as Jamukha (who also wanted to be a ruler of Mongol tribes) and Wang Khan (his and his father's ally), his son Jochi, and problems with the most important shaman, who was allegedly trying to drive a wedge between him and his loyal brother Khasar. His military strategies showed a deep interest in gathering good intelligence and understanding the motivations of his rivals, exemplified by his extensive spy network and Yam route systems. He seemed to be a quick student, adopting new technologies and ideas that he encountered, such as siege warfare from the Chinese. He was also ruthless, demonstrated by his tactic of measuring against the linchpin, used against the tribes led by Jamukha.

As a result, by 1206 Temüjin had managed to unite or subdue the Merkits, Naimans, Mongols, Keraites, Tatars, Uyghurs, and other disparate smaller tribes under his rule. It was a monumental feat for the "Mongols" (as they became known collectively). At a Khuruldai, a council of Mongol chiefs, Temüjin was acknowledged as "Khan" of the consolidated tribes and took the new title "Genghis Khan". The title Khagan was not conferred on Genghis until after his death, when his son and successor, Ögedei, took the title for himself and extended it posthumously to his father (as he was also to be posthumously declared the founder of the Yuan dynasty). This unification of all confederations by Genghis Khan established peace between previously warring tribes and a single political and military force under Genghis Khan.

In 1211, after the conquest of Western Xia, Genghis Khan planned again to conquer the Jin dynasty. The commander of the Jin dynasty army made a tactical mistake in not attacking the Mongols at the first opportunity. Instead, the Jin commander sent a messenger, Ming-Tan, to the Mongol side, who defected and told the Mongols that the Jin army was waiting on the other side of the pass. At this engagement fought at Badger Pass the Mongols massacred hundreds of thousands of Jin troops. In 1215 Genghis besieged, captured, and sacked the Jin capital of Zhongdu (modern-day Beijing). This forced the Emperor Xuanzong to move his capital south to Kaifeng, abandoning the northern half of his kingdom to the Mongols. Between 1232 and 1233, Kaifeng fell to the Mongols under the reign of Genghis' third son, Ögedei Khan. The Jin dynasty collapsed in 1234, after the siege of Caizhou.

Kuchlug, the deposed Khan of the Naiman confederation that Temüjin defeated and folded into his Mongol Empire, fled west and usurped the khanate of Qara Khitai (also known as the Western Liao, as it was originally established as remnants of the Liao dynasty). Genghis Khan decided to conquer the Qara Khitai and defeat Kuchlug, possibly to take him out of power. By this time the Mongol army was exhausted from ten years of continuous campaigning in China against the Western Xia and Jin dynasty. Therefore, Genghis sent only two tumen (20,000 soldiers) against Kuchlug, under his younger general, Jebe, known as "The Arrow".

With such a small force, the invading Mongols were forced to change strategies and resort to inciting internal revolt among Kuchlug's supporters, leaving the Qara Khitai more vulnerable to Mongol conquest. As a result, Kuchlug's army was defeated west of Kashgar. Kuchlug fled again, but was soon hunted down by Jebe's army and executed. By 1218, as a result of defeat of Qara Khitai, the Mongol Empire and its control extended as far west as Lake Balkhash, which bordered the Khwarezmia (Khwarezmid Empire), a Muslim state that reached the Caspian Sea to the west and Persian Gulf and the Arabian Sea to the south.



###Question: Who took control of Qara Khitai after fleeing Temüjin's Mongol Empire?

###Answer: {'answer':'Kuchlug'}