a-a a-t aaa aam aap aas aat aax ama amm amp ams amt amx ap- apa apm app aps apt apx as- asa asm asp ass ast asx at- ata atm atp ats att atx ax- axa axm axp axs axt axx maa mam map mas mat max mma mmm mmp mms mmt mmx mpa mpm mpp mps mpt mpx msa msm msp mss mst msx mta mtm mtp mts mtt mtx mxa mxp mxs p-p paa pam pap pas pat pax pma pmm pmp pms pmt pmx ppa ppm ppp pps ppt ppx ps- psa psm psp pss pst psx pt- pta ptm ptp pts ptt ptx pxm pxs pxt saa sam sap sas sat sax sma smm smp sms smt smx spa spm spp sps spt spx ss- ssa ssm ssp sss sst ssx sta stm stp sts stt stx sxm sxs sxt t-x taa tam tap tas tat tax tma tmm tmp tms tmt tmx tpa tpm tpp tps tpt tpx tsa tsm tsp tss tst tsx tta ttm ttp tts ttt ttx txs txt xaa xam xap xas xat xma xmm xmp xms xmt xmx xpa xpm xpp xps xpt xsa xsm xsp xss xst xtm xtp xts xtx xxp xxx