a-a aaa aad aam aao aap aar aax ad- ada add adm ado adp adr adx ama amd amm amo amp amr amx aoa aod aom aoo aop aor aox ap- apa apd apm apo app apr apx ar- ara ard arm aro arp arr arx ax- axa axm axo axp axr axx daa dad dam dao dap dar dax dda ddd ddm ddo ddp ddr ddx dma dmd dmm dmo dmp dmr dmx doa dod dom doo dop dor dox dpa dpd dpm dpo dpp dpr dra drd drm dro drp drr drx dxd dxo dxp dxr dxx m-o m-r maa mad mam mao map mar max mda mdd mdm mdo mdp mdr mdx mma mmd mmm mmo mmp mmr mmx moa mod mom moo mop mor mox mpa mpd mpm mpo mpp mpr mpx mra mrd mrm mro mrp mrr mrx mxa mxd mxp mxr oaa oad oam oao oap oar oax oda odd odm odo odp odr om- oma omd omm omo omp omr omx oo- ooa ood oom ooo oop oor oox op- opa opd opm opo opp opr opx or- ora ord orm oro orp orr orx ox- oxa oxo oxx p-p paa pad pam pao pap par pax pda pdd pdm pdo pdp pdr pdx pma pmd pmm pmo pmp pmr pmx poa pod pom poo pop por pox ppa ppd ppm ppo ppp ppr ppx pra prd prm pro prp prr prx pxm pxr ra- raa rad ram rao rap rar rax rda rdd rdm rdo rdp rdr rdx rma rmd rmm rmo rmp rmr rmx roa rod rom roo rop ror rox rpa rpd rpm rpo rpp rpr rpx rra rrd rrm rrp rrr rxp rxr xaa xad xam xap xar xda xdm xdr xma xmd xmm xmo xmp xmr xmx xoa xod xom xoo xop xor xox xpa xpd xpm xpo xpp xrd xrx xxo xxp xxx