{HEAD ~ Each set} of identity cards can include {TAIL ~ a plurality} of cards with identities that are either randomly unrelated to one another or related to one another by a given theme or subject matter 
include
{ HEAD ~ Each set } of identity cards can include { TAIL ~ a plurality } of cards with identities that are either randomly unrelated to one another or related to one another by a given theme or subject matter
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH