Assertion: ufo | /r/HasProperty | みかくにんひこうぶったい
Facets:
Source sentences:
text: An Unidentified Flying Object or UFO (未確認飛行物体 （みかくにんひこうぶったい）, mikakunin hikou buttai) is any anomaly appearing in the sky that can't be definitively identified or explained as a known phenomenon or object.