a-a a-b a-i a-t aaa aab aad aai aam aar aat aax ab- aba abb abd abi abm abr abt abx ad- ada adb add adi adm adr adt adx ai- aia aib aid aii aim air ait aix ama amb amd ami amm amr amt amx ar- ara arb ard ari arm arr art arx at- ata atb atd ati atm atr att atx ax- axa axi axm axr axt axx baa bab bad bai bam bar bat bax bba bbb bbd bbi bbm bbr bbt bbx bda bdb bdd bdi bdm bdr bdt bdx bi- bia bib bid bii bim bir bit bix bma bmb bmd bmi bmm bmr bmt bmx bra brb brd bri brm brr brt brx bta btb btd bti btm btr btt btx bxb bxd bxi bxm bxx daa dab dad dai dam dar dat dax dba dbb dbd dbi dbm dbr dbt dbx dda ddb ddd ddi ddm ddr ddt ddx di- dia dib did dii dim dir dit dix dma dmb dmd dmi dmm dmr dmt dmx dra drb drd dri drm drr drt drx dta dtb dtd dti dtm dtr dtt dtx dxd dxi dxr dxt dxx i-d ia- iaa iab iad iai iam iar iat iba ibb ibd ibi ibm ibr ibt ibx ida idb idd idi idm idr idt idx iia iib iid iii iim iir iit iix im- ima imb imd imi imm imt imx ir- ira irb ird iri irm irr irt irx ita itb itd iti itm itt itx ixi m-r maa mab mad mai mam mar mat max mba mbb mbd mbi mbm mbr mbt mbx mda mdb mdd mdi mdm mdr mdt mdx mi- mia mib mid mii mim mir mit mix mma mmb mmd mmi mmm mmr mmt mmx mra mrb mrd mri mrm mrr mrt mrx mta mtb mtd mti mtm mtr mtt mtx mxa mxd mxi mxr ra- raa rab rad rai ram rar rat rax rba rbb rbd rbi rbm rbr rbt rbx rda rdb rdd rdi rdm rdr rdt rdx ria rib rid rii rim rir rit rix rma rmb rmd rmi rmm rmr rmt rmx rra rrb rrd rri rrm rrr rrt rta rtb rtd rti rtm rtr rtt rtx rxr t-x taa tab tad tai tam tar tat tax tba tbb tbd tbi tbm tbr tbt tda tdb tdd tdi tdm tdr tdt tdx tia tib tid tii tim tir tit tix tma tmb tmd tmi tmm tmr tmt tmx tra trb trd tri trm trr trt trx tta ttb ttd tti ttm ttr ttt ttx txi txt xaa xad xam xar xat xbr xbx xda xdb xdi xdm xdr xdt xia xii xit xix xma xmd xmi xmm xmr xmt xmx xrd xrt xrx xti xtm xtr xtx xxi xxx