Assertion: aikido | /r/HasProperty | developed in the mid-20th century
Facets:
value: by morihei ueshiba
type: OTHER
Source sentences:
text: Aikido (Japanese: ai- harmony, ki- energy or power, do- way, or path) is the martial art developed in the mid-20th Century by Morihei Ueshiba, called O-sensei (great teacher) by his devotees.