Assertion: aikido's student | /r/HasProperty | trained with ueshiba
Facets:
value: for a protracted period
type: TEMPORAL
Source sentences:
text: These variations are compounded by the fact that few students trained with Ueshiba for a protracted period; only Yoichiro Inoue, Kenji Tomiki, Gozo Shioda, Morihiro Saito, Tsutomu Yukawa and Mitsugi Saotome studied directly under Ueshiba for more than five or six years.