Complex sentence: Karatenomichi World Federation (KWF) is a major international traditional Shotokan Karate organization that was founded by Mikio Yahara, who was a leading Shotokan karate fighter, Kata exponent and instructor of the Japan Karate Association.
Split into simpler sentences: Karatenomichi World Federation (KWF) is a major international traditional Shotokan karate organization that was founded by Mikio Yahara. Yahara was a leading Shotokan karate fighter, kata exponent and instructor of the Japan Karate Association.