-er a-a a-t aaa aae aak aam aar aat aax aea aee aek aem aer aet aex aka ake akk akm akr ama ame amk amm amr amt amx ar- ara are ark arm arr art arx at- ata ate atm atr att atx ax- axa axe axk axm axr axt axx eaa eae eak eam ear eat eax eea eee eek eem eer eet eex eka eke ekr ekt em- ema eme emk emm emr emt emx era ere erk erm err ert eta ete etk etm etr ett etx ex- exa exe exr ext exx k-t ka- kaa kae kak kam kar kat kax ke- kea kee kek kem ker ket kex kke kkk kkm kkr kkt kma kme kmk kmm kmt kra krk krr krt kta kte ktk ktm ktr ktt kxm m-r maa mae mak mam mar mat max mea mee mek mem mer met mex mka mke mkk mkm mkr mkt mkx mma mme mmk mmm mmr mmt mmx mra mre mrk mrm mrr mrt mrx mta mte mtk mtm mtr mtt mtx mxa mxr ra- raa rae rak ram rar rat rax re- rea ree rek rem rer ret rex rke rkk rkm rkt rma rme rmm rmr rmt rmx rra rrk rrm rrr rrt rta rte rtk rtm rtr rtt rtx rxr t-x taa tae tak tam tar tat tax te- tea tee tek tem ter tet tex tka tke tkk tkm tkr tkt tma tme tmk tmm tmr tmt tmx tra tre trk trm trr trt trx tta tte ttk ttm ttr ttt ttx txe txk txt xaa xak xam xar xat xee xem xer xet xex xke xma xmk xmm xmr xmt xmx xrt xrx xtm xtr xtx xxx