a-a a-c a-t aaa aac aam aao aap aat aax ac- aca acc acm aco acp act acx ama amc amm amo amp amt amx aoa aoc aom aoo aop aot aox ap- apa apc apm apo app apt apx at- ata atc atm ato atp att atx ax- axa axm axo axp axt axx c-- caa cac cam cao cap cat cax cca ccc ccm cco ccp cct ccx cma cmc cmm cmo cmp cmt cmx co- coa coc com coo cop cot cox cpa cpc cpm cpo cpp cpt cpx cta ctc ctm cto ctp ctt ctx cxc cxo cxp cxt cxx m-o maa mac mam mao map mat max mc- mca mcc mcm mco mcp mct mcx mma mmc mmm mmo mmp mmt mmx moa moc mom moo mop mot mox mpa mpc mpm mpo mpp mpt mpx mta mtc mtm mto mtp mtt mtx mxa mxc mxp oaa oac oam oao oap oat oax oc- oca occ ocm oco ocp oct ocx om- oma omc omm omo omp omt omx oo- ooa ooc oom ooo oop oot oox op- opa opc opm opo opp opt opx ot- ota otc otm oto otp ott ox- oxa oxc oxo oxt oxx p-p paa pac pam pao pap pat pax pca pcc pcm pco pcp pct pcx pma pmc pmm pmo pmp pmt pmx poa poc pom poo pop pot pox ppa ppc ppm ppo ppp ppt ppx pt- pta ptc ptm pto ptp ptt ptx pxc pxm pxt t-x taa tac tam tao tap tat tax tca tcc tcm tco tcp tct tcx tma tmc tmm tmo tmp tmt tmx to- toa toc tom too top tot tox tpa tpc tpm tpo tpp tpt tpx tta ttc ttm tto ttp ttt ttx txt xaa xac xam xap xat xcp xcx xma xmc xmm xmo xmp xmt xmx xoa xoc xom xoo xop xot xox xpa xpc xpm xpo xpp xpt xtc xtm xtp xtx xxo xxp xxx