You will be given a definition of a task first, then some input of the task.
In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).

Context: Featherweight is a weight class in the combat sports of boxing, kickboxing, mixed martial arts and Greco-Roman wrestling., Weight classes are divisions of competition used to match competitors against others of their own size. This reduces the exclusion of smaller athletes in sports where physical size gives a significant advantage. Weight classes are used in a variety of sports, especially combat sports (such as boxing, wrestling, and mixed martial arts). , A combat sport, or fighting sport, is a competitive contact sport with one-on-one combat. Determining the winner depends on the particular contest's rules. In many fighting sports, a contestant wins by scoring more points than the opponent or by disabling the opponent. Boxing, wrestling, Muay Thai, Tae Kwon Do, Judo, Brazilian Jiu-jitsu, Sambo, and Mixed Martial Arts are examples of combat sports., Kickboxing is a group of stand-up combat sports based on kicking and punching, historically developed from Karate, Muay Thai, Khmer Boxing, and Western boxing. Kickboxing is practiced for self-defense, general fitness, or as a contact sport., Mixed martial arts (MMA) is a full-contact combat sport that allows both striking and grappling, both standing and on the ground, using techniques from other combat sports and martial arts. The first documented use of the term "mixed martial arts" was in a review of UFC 1 by television critic Howard Rosenberg in 1993. The term gained popularity when newfullcontact.com, then one of the largest websites covering the sport, hosted and republished the article. The question of who actually coined the term is subject to debate., Greco-Roman (US) or Graeco-Roman (UK) wrestling is a style of wrestling that is practiced worldwide. It was contested at the first modern Olympic Games in 1896 and has been included in every edition of the summer Olympics held since 1908. Two wrestlers are scored for their performance in two three-minute periods, which can be terminated early by a pin (or fall). This style of wrestling forbids holds below the waist; this is the major difference from freestyle wrestling, the other form of wrestling at the Olympics. This restriction results in an emphasis on throws because a wrestler cannot use trips to take an opponent to the ground, or avoid throws by hooking or grabbing the opponent's leg., Abdelkader Chadi ( born December 12 , 1986 ) is an Algerian boxer who won the All - African title 2007 at featherweight and 2015 at junior welter . He also qualified for the Olympics ., Boxing is a combat sport in which two people wearing protective gloves throw punches at each other for a predetermined set of time in a boxing ring., Subject: abdelkader chadi, Relation: sport, Options: (A) boxing (B) combat sport (C) contact sport (D) freestyle wrestling (E) judo (F) kickboxing (G) mixed martial arts (H) sport (I) wrestling
Output:
boxing