a-a a-t aaa aam aao aar aat aax ama amm amo amr amt amx aoa aom aoo aor aot aox ar- ara arm aro arr art arx at- ata atm ato atr att atx ax- axa axm axo axr axt axx m-o m-r maa mam mao mar mat max mma mmm mmo mmr mmt mmx moa mom moo mor mot mox mra mrm mro mrr mrt mrx mta mtm mto mtr mtt mtx mxa mxr oaa oam oao oar oat oax om- oma omm omo omr omt omx oo- ooa oom ooo oor oot oox or- ora orm oro orr ort orx ot- ota otm oto otr ott ox- oxa oxo oxt oxx ra- raa ram rao rar rat rax rma rmm rmo rmr rmt rmx roa rom roo ror rot rox rra rrm rrr rrt rta rtm rto rtr rtt rtx rxr t-x taa tam tao tar tat tax tma tmm tmo tmr tmt tmx to- toa tom too tor tot tox tra trm tro trr trt trx tta ttm tto ttr ttt ttx txt xaa xam xar xat xma xmm xmo xmr xmt xmx xoa xom xoo xor xot xox xrt xrx xtm xtr xtx xxo xxx