Question: What are the only allowed moves in tao kwon do?
About the article "Taekwondo", section "World Taekwondo Federation".

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Production Code: 112April 5, 2002Young Martial Arts athletes Kha and Peta determine how different tae kwon do moves challenge their bodies' skeletal and muscular systems, and then attempt to do what they learned in competition. 
Season 4 (2005).1.
Production Code: 401January 4, 2005En garde!
Paula and Alyssa investigate the energy and impact of different fencing moves.
Kha and Peta, young martial arts athletes, determine how different tae kwon do moves challenge their bodies’ skeletal and muscular systems and then apply what they learned in competition.
Dr. Joel Boyd orthopedic surgeon works with athletes to get them ready for the game. 
Personal life.
Some of her many accolades are the following: 1997 — Most Caring Coach Award – USA Weekend Magazine, Arlington, VA 1997 — Most Caring Coach Award – Herald-Sun Newspaper, Durham, NC 1998 — Presidential Diploma – World Tae kwon Do Federation, Seoul, Korea 1998 — Tae Kwon Do Training Certificate – The World Tae Kwon Do Academy, Seoul, Korea 1999 — Presidential Diploma – World Tae kwon Do Federation, Seoul, Korea 1999 — Tae Kwon Do Training Certificate – The World Tae Kwon Do Academy, Seoul, Korea 2000 — Presidential Diploma – World Tae kwon Do Federation, Seoul, Korea 2000 — Tae Kwon Do Training Certificate – The World Tae Kwon Do Academy, Seoul, Korea 2001 — Presidential Diploma – World Tae kwon Do Federation, Seoul, Korea 2001 — Tae Kwon Do Training Certificate – The World Tae Kwon Do Academy, Seoul, Korea  
The fastest style in the game, Tae Kwon Do excels in long-range attacks and well-rounded defense.
Tae Kwon Do has long strings of combos that can easily devastate opponents, as well as quick keep-away moves that can cover a retreat.
Tae Kwon Do also has the Flamingo stance, which allows users to stand in a defensive posture to deal out tricky attacks.
This style has a large arsenal of pokes and relies on punishing mistakes or mix-ups to get past the opponent's guard. 
  Ji Kang-Hyuk: The Leader of the Four Heavenly Dragons or the "Daeil Cheonhwang" of Goo-Ryong High School.
He's an incredibly gifted fighter who likes to chain together aerial moves.
In the beginning of the story he is the strongest fighter in Seoul.
He is defeated in volume 12 by Shin Jin-Ho.
After the defeat he trains for a year and learns the "Corkscrew Punch" in an effort to redeem himself with a rematch.
After that training time he participates in the tournament against the five gang leaders from the correctional institute, and his first opponent is the "Savage" Mah Kang-Chul.
He delivers the "Corkscrew Punch" countless times, but is still defeated by Mah Kang-Chul.
After the match he apologizes to Shin Jin-Ho for breaking their promise of not losing until they fought each other.
Pi Ho-Chul (Boxing): The weakest of the Four Heavenly Dragons.
The good-looking, womanizer type, he crosses paths with Woo So-Choi when he tries to hit on Yuna and Do-He.
He's Japan's young amateur representative, and later on when he becomes a pro-boxer, runs for nomination of Rookie of the Year.
Pi Ho-Chul is the first of the four dragons to face Woo So-Choi.
He challenges him to a boxing match thinking that Woo So-Choi has the boxing abilities of the real Kang Too-Jee.
He loses the match, despite cheating.
One year later he becomes a pro-boxer, and is easily defeated by Jegal Mih-Yang during the mainland hunting.
Jee Dae-Woong (Judo): The second weakest of the Four Heavenly Dragons.
He is a very tall, strong guy, and the captain of the judo club in Goo-Ryong High School.
He is defeated by Han Sang-Jin during his revenge on the four dragons for destroying his Tae Kwon Do master.
During his participation in the correctional institute tournament, he is quickly defeated by Kwon Shin's "palm twisting attack".
Dokko Dae-San (or Dokgo Dae-San) (Wrestling): He was the one who defeated Han Sang-Jin's Tae Kwon Do master.
He is the captain of the wrestling club, and has great technique and strength (capable of bench pressing 300 kg).
He never participates in a fight that he doesn't have 100% chance of winning.
He defeats Han Sang-Jin in less than 3 minutes, when the latter goes attempts to avenge his master.
After Woo So-Choi's special underwater training, he fights Dokko Dae-San and wins.
A year later during the main land hunt Dokko Dae-San fights Jang-Suk Chung and loses badly.
He ends up in the hospital with many bones broken, including his chin.
Han Sang-Jin (Tae Kwon Do): A former member of the Four Heavenly Dragons.
He was only a member as part of his plan to exact revenge on the four dragons for what they did to his Tae Kwon Do Instructor, Ryu Nam-Jin.
A natural born talent, Han Sang-Jin prefers "real-life" training and so participates in fights often.
His initial goal is to defeat the man who defeated his Tae Kwon Do instructor.
He defeats Woo So-Choi at the same time he defeats Jee Dae-Woong and Pi Ho-Chul, but loses in less than 3 minutes when he challenges Dokko Dae-San.
After working on Tae Kwon Do's basic kicks and punches to perfection, he is able to do a Tae Kwon Do punch with full shoulder and back strength, and that punch is the "one ton hit".
When he participates in the Academy of Hell tournament, his first opponent is Lee Hae-Kang.
He fights a good match, capable of bringing his opponent to the ground, while about 100 men wasn't able to make him move a single step but ultimately loses due to Lee Hae-Kang's immense stamina and resilience.