Assertion: group's number | /r/HasProperty | chosen
Facets:
Source sentences:
text: A double digit prefix was selected to avoid any confusion with the U.S counterparts of the 2nd, 4th, 7th, and 8th MIS/Psych Ops Groups, and the number 15 was chosen because PSYOPS battlefield activities in support of 21 Army Group during WW2 were conducted by Amplifier Units (numbered 10-14).