Assertion: acronym ufo | /r/HasProperty | coined by captain edward j. ruppelt
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Source sentences:
text: The acronym "UFO" was coined by Captain Edward J. Ruppelt, who headed Project Blue Book, then the USAF's official investigation of UFOs.
text: The acronym "UFO" was coined by Captain Edward J. Ruppelt, who headed Project Blue Book, then the USAF's official investigation of UFOs.