a-a a-b a-q aaa aab aam aao aaq aar ab- aba abb abm abo abq abr ama amb amm amo amq amr aoa aob aom aoo aor aqa aqm aqo aqr ar- ara arb arm aro arq arr baa bab bam bao baq bar bba bbb bbm bbo bbq bbr bma bmb bmm bmo bmq bmr boa bob bom boo boq bor bra brb brm bro brq brr m-o m-r maa mab mam mao mar mba mbb mbm mbo mbq mbr mma mmb mmm mmo mmr moa mob mom moo mor mqa mqb mqr mra mrb mrm mro mrq mrr oaa oab oam oao oaq oar ob- oba obb obm obo obr om- oma omb omm omo omr oo- ooa oob oom ooo oor oqb oqo or- ora orb orm oro orr qaa qam qar qba qbq qma qmr qom qoo qor qqq qra qrb qrm ra- raa rab ram rao raq rar rba rbb rbm rbo rbr rma rmb rmm rmo rmq rmr roa rob rom roo ror rqm rra rrb rrm rrq rrr