Each identity is provided on a media in a manner permitting selection of one identity by a player for {HEAD ~ a round} of {TAIL ~ play} 
of
Each identity is provided on a media in a manner permitting selection of one identity by a player for { HEAD ~ a round } of { TAIL ~ play }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL