Tanrenkan ( 鍛錬館 , which means " Hardening Hall " ) is an aikido training hall run by Hitohiro Saito , who is the son of Morihiro Saito .
Head entity: morihiro saito Q550626 26 27
Tail entity: hitohiro saito Q1354681 18 19
Relation (head \u2192 tail): P22
Inverse relation (tail \u2192 head): P40