Question: Iwama dojo was built by what martial artist who is often referred to as the founder, Kaiso, or Great Teacher?
Sentence (from "Iwama dojo"): This dojo is also where Morihiro Saito, one of the founder's closest students, learned and taught aikido from 1946 until 2002 developing what is often referred to as the Iwama Style.
Relevant evidence: No