Question: The organization that authorized troops to follow North Korean forces north, recognizes how many regions in the continent that has the place of birth of Nikifor Popov?

<P0-S0> Nikifor Popov (2 June 1911, in Khabarovsk – after 1980) was a Russian long-distance runner who competed for the Soviet Union in the 1952 Summer Olympics in the 5,000 metres and 10,000 metres as a 40 year old, in the process or qualifying for the Olympics setting the Masters M40 World record in the 5,000 metres and 10,000 metres. <P0-S1> His record in the 5,000 lasted just over 20 years before it was surpassed by French Olympian Michel Bernard. <P0-S2> He is reported to have improved upon his own record in the 10,000 three years later. <P0-S3> His 10,000 record was beaten 12 years after the initial setting by another French Olympian, 1956 Marathon gold medalist Alain Mimoun. <SEP> <P1-S0> Khabarovsk is served by the Khabarovsk Novy Airport with international flights to East Asia, Southeast Asia, European Russia, and Central Asia. <SEP> <P2-S0> paek son-haeng (1848 november – 1933) was a korean businesswoman known for her philanthropy. <P2-S1> the name "son haeng" means virtuous deeds, and was a nickname bestowed on her due to her contributions. <P2-S2> north korean sources claim that she was born in modern-day chung-kuyŏk, pyongyang, but south korean sources claim that she was born in suwon. <P2-S3> she was widowed at the age of 16 or 20, and spent the rest of her life saving money while spending very little. <P2-S4> regardless of her place of birth, she spent most of her life in pyongyang, where most of her donations were made. <SEP> <P3-S0> the African Group, with 54 member states the Asia - Pacific Group, with 53 member states the Eastern European Group, with 23 member states the Latin American and Caribbean Group (GRULAC), with 33 member states the Western European and Others Group (WEOG), with 28 member states, plus 1 member state (the United States) as an observer state. <SEP> <P4-S0> a continent is one of several very large landmasses of the world. <P4-S1> generally identified by convention rather than any strict criteria, up to seven regions are commonly regarded as continents. <P4-S2> ordered from largest in size to smallest, they are: asia, africa, north america, south america, antarctica, europe, and australia. <SEP> <P5-S0> By 1 October 1950, the UN Command repelled the KPA northwards past the 38th parallel; the ROK Army crossed after them, into North Korea. <P5-S1> MacArthur made a statement demanding the KPA's unconditional surrender. <P5-S2> Six days later, on 7 October, with UN authorization, the UN Command forces followed the ROK forces northwards. <P5-S3> The X Corps landed at Wonsan (in southeastern North Korea) and Riwon (in northeastern North Korea), already captured by ROK forces. <P5-S4> The Eighth U.S. Army and the ROK Army drove up western Korea and captured Pyongyang city, the North Korean capital, on 19 October 1950. <P5-S5> The 187th Airborne Regimental Combat Team ("Rakkasans") made their first of two combat jumps during the Korean War on 20 October 1950 at Sunchon and Sukchon. <P5-S6> The missions of the 187th were to cut the road north going to China, preventing North Korean leaders from escaping from Pyongyang; and to rescue American prisoners of war. <P5-S7> At month's end, UN forces held 135,000 KPA prisoners of war. <P5-S8> As they neared the Sino-Korean border, the UN forces in the west were divided from those in the east by 50–100 miles of mountainous terrain.