These members are also the only persons given the authority to train new sumo wrestlers. They do this by opening or taking over a training stable, or "heya" (changed to "beya" as a suffix) which will in most cases take the same name as the member's elder name. Thus "Dewanoumi-oyakata" will be the owner of "Dewanoumi-beya". Typically about 50% of the Association members have their own stable, while the rest are required to be affiliated with one and assist the principal owner. It is common for the most senior members of the Association to concentrate on their Association responsibilities and pass the day-to-day management of a stable to another. If a senior "oyakata" wishes to do this, the two may elect to swap names so that the stable can keep the more prestigious name. A recent example was in 1996, when the Association's chairman Dewanoumi-"oyakata" (former "yokozuna" Sadanoyama), swapped names with Sakaigawa-"oyakata" (former "sekiwake" Washuyama) who took over the running of Dewanoumi stable. See heya for more information.