Question: What modern Japanese martial art was developed by Morihei Ueshiba, often referred to as"the founder" "Kaiso" or "Ōsensei"?
Sentence (from "Kenshiro Abbe"): Kenshiro Abbe (阿部 謙四郎 , Abe Kenshirō , 15 December 1915 – 1 December 1985) was a prominent Japanese master of judo, aikido, and kendo.
Relevant evidence: No