Context: Grappling refers to techniques, maneuvers, and counters applied to an opponent in order to gain a physical advantage in hand-to-hand combat, such as improving relative position, escaping, submitting, or injury to the opponent. Grappling is a general term that covers techniques used in many disciplines, styles and martial arts that are practiced both as combat sports and for self-defense. Grappling most commonly does not include striking or the use of weapons. However, some fighting styles or martial arts known especially for their grappling techniques teach tactics that include strikes and weapons either alongside grappling or combined with it., The Korea Hapkido Federation is the largest, wholly hapkido, governing body for the Korean martial art of hapkido in the world. It is made up of predominantly Korean born students and instructors or those individuals who have directly trained in South Korea. This organization is based in Seoul, South Korea and its president is Kim, Jong-Yun., Martial arts are codified systems and traditions of combat practices, which are practiced for a number of reasons: as self-defense, military and law enforcement applications, mental and spiritual development; as well as entertainment and the preservation of a nation's intangible cultural heritage., A knife (plural knives) is a tool with a cutting edge or blade, hand-held or otherwise, with most having a handle. Some types of knives are used as utensils, including knives used at the dining table (e.g., butter knives and steak knives) and knives used in the kitchen (e.g., paring knife, bread knife, cleaver). Many types of knives are used as tools, such as the utility knife carried by soldiers, the pocket knife carried by hikers and the hunting knife used by hunters. Knives are also used as a traditional or religious implement, such as the kirpan. Some types of knives are used as weapons, such as daggers or switchblades. Some types of knives are used as sports equipment (e.g., throwing knives). Knives are also used in agriculture, food harvesting etc.; the sickle, the scythe and even the combine harvester are knives., Oh Se - Lim ( Hangul :  ) was an early Korean hapkido practitioner and a pioneer of the art. He had been the president of the Korea Hapkido Federation for 18 years ., Hapkido (, , also spelled hap ki do or hapki-do ) is a highly eclectic Korean martial art. It is a form of self-defense that employs joint locks, grappling, and throwing techniques similar to those of other martial arts, as well as kicks, punches, and other striking attacks. It also teaches the use of traditional weapons, including knife, sword, rope, ssang juhl bong (nunchaku), cane (ji pang ee), short stick (dan bong), and middle-length staff (joong bong, gun (analogous to the Japanese j), and b (Japanese)), which vary in emphasis depending on the particular tradition examined., A joint lock is a grappling technique involving manipulation of an opponent's joints in such a way that the joints reach their maximal degree of motion. , Japan ("Nippon" or "Nihon" ; formally "" or "Nihon-koku", means "State of Japan") is a sovereign island nation in Eastern Asia. Located in the Pacific Ocean, It is lying off the eastern coast of the Asia Mainland (east of China, Korea, Russia) and stretching from the Sea of Okhotsk in the north to the East China Sea and near Taiwan in the southwest. , In modern times, nunchaku (Tabak-Toyok) were popularized by actor and martial artist Bruce Lee and his martial arts instructor Dan Inosanto, who introduced this weapon to the actor. Organizations including the North American Nunchaku Association, World Amateur Nunchaku Organization, Fédération Internationale de Nunchaku de Combat et Artistique, World Nunchaku Association, and International Techdo Nunchaku Association teach the use of nunchaku as a contact sport., South Korea, officially the Republic of Korea (ROK), is a sovereign state in East Asia, constituting the southern part of the Korean Peninsula., Korea is a historical state in East Asia, since 1945 divided into two distinct sovereign states: North Korea (officially the "Democratic People's Republic of Korea") and South Korea (officially the "Republic of Korea"). Located on the Korean Peninsula, Korea is bordered by China to the northwest and Russia to the northeast. It is separated from Japan to the east by the Korea Strait and the East Sea., Subject: oh se-lim, Relation: occupation, Options: (A) actor (B) entertainment (C) grappling (D) hunting (E) law enforcement (F) martial artist (G) military (H) president (I) religious (J) sovereign
Output: martial artist