-er a-a a-b a-i a-t aaa aab aad aae aaf aai aak aam aao aar aat ab- aba abb abd abe abf abi abk abm abo abr abt ad- ada adb add ade adf adi adk adm ado adr adt aea aeb aed aee aef aei aek aem aeo aer aet af- afa afb afd afe aff afi afk afm afo afr aft ai- aia aib aid aie aif aii aik aim aio air ait aka akb akd ake aki akk akm ako akr ama amb amd ame amf ami amk amm amo amr amt aoa aob aod aoe aof aoi aok aom aoo aor aot ar- ara arb ard are arf ari ark arm aro arr art at- ata atb atd ate atf ati atm ato atr att baa bab bad bae baf bai bak bam bao bar bat bba bbb bbd bbe bbf bbi bbk bbm bbo bbr bbt bda bdb bdd bde bdf bdi bdk bdm bdo bdr bdt be- bea beb bed bee bef bei bek bem beo ber bet bfa bfb bfd bfe bff bfi bfm bfo bfr bft bi- bia bib bid bie bif bii bik bim bio bir bit bka bkb bke bkf bkk bkm bko bkr bkt bma bmb bmd bme bmf bmi bmk bmm bmo bmr bmt boa bob bod boe bof boi bok bom boo bor bot bra brb brd bre brf bri brk brm bro brr brt bta btb btd bte btf bti btk btm bto btr btt daa dab dad dae daf dai dak dam dao dar dat dba dbb dbd dbe dbf dbi dbk dbm dbo dbr dbt dda ddb ddd dde ddf ddi ddk ddm ddo ddr ddt de- dea deb ded dee def dei dek dem deo der det dfa dfb dfd dfe dff dfi dfk dfm dfo dfr dft di- dia dib did die dif dii dik dim dio dir dit dka dkb dke dki dkk dkm dko dkr dkt dma dmb dmd dme dmf dmi dmk dmm dmo dmr dmt doa dob dod doe dof doi dok dom doo dor dot dra drb drd dre dri drk drm dro drr drt dta dtb dtd dte dtf dti dtk dtm dto dtr dtt eaa eab ead eae eaf eai eak eam eao ear eat eba ebb ebd ebe ebf ebi ebk ebm ebo ebr ebt ed- eda edb edd ede edf edi edk edm edo edr edt eea eeb eed eee eef eek eem eeo eer eet ef- efa efb efd efe eff efi efm efo efr eft eia eib eid eie eif eii eik eim eio eir eit eka ekb ekd eke ekf eki eko ekr ekt em- ema emb emd eme emf emi emk emm emo emr emt eo- eoa eob eod eoe eof eoi eok eom eoo eor eot era erb erd ere erf eri erk erm ero err ert eta etb etd ete etf eti etk etm eto etr ett faa fab fad fae faf fai fak fam fao far fat fba fbb fbd fbe fbf fbi fbk fbm fbo fbr fbt fda fdb fdd fde fdf fdi fdk fdm fdo fdr fdt fea feb fed fee fef fei fek fem feo fer fet ffa ffd ffe fff ffi ffk ffm ffo ffr fft fia fib fid fie fif fii fik fim fir fit fka fkb fkf fki fkk fkm fkt fma fmb fmd fme fmf fmi fmm fmo fmr fmt foa fob foe fof foi fok fom foo for fot fra frb frd fre frf fri frk frm fro frr frt fta ftb ftd fte ftf fti ftk ftm fto ftr ftt i-d i-f ia- iaa iab iad iae iaf iai iam iao iar iat iba ibb ibd ibe ibf ibi ibk ibm ibo ibr ibt ida idb idd ide idf idi idk idm ido idr idt ie- iea ied iee ief iei iek iem ier iet ifa ifb ifd ife iff ifi ifm ifo ifr ift iia iib iid iie iif iii iim iio iir iit ika ikb ike ikf iki ikk iko ikr ikt im- ima imb imd ime imf imi imm imo imt io- ioa iob iod ioe iof ioi iom ioo ior iot ir- ira irb ird ire irf iri irk irm iro irr irt ita itb itd ite itf iti itk itm ito itt k-t ka- kaa kab kad kae kaf kai kak kam kao kar kat kba kbb kbd kbe kbf kbi kbk kbm kbo kbr kda kdb kde kdf kdk kdm kdo kdr kdt ke- kea keb ked kee kef kei kek kem keo ker ket kfa kfd kff kfi kfm kfo kia kib kid kie kif kii kik kim kio kir kit kkb kke kki kkk kkm kkr kkt kma kmb kmd kme kmf kmi kmk kmm kmo kmt koa kob kod koe kof koi kok kom koo kor kot kra krd krf kri krk kro krr krt kta ktb kte ktf ktk ktm kto ktr ktt m-f m-o m-r maa mab mad mae maf mai mak mam mao mar mat mba mbb mbd mbe mbf mbi mbk mbm mbo mbr mbt mda mdb mdd mde mdf mdi mdk mdm mdo mdr mdt mea meb med mee mef mei mek mem meo mer met mfa mfb mfd mfe mff mfi mfm mfo mfr mft mi- mia mib mid mie mif mii mik mim mio mir mit mka mkb mkd mke mkk mkm mko mkr mkt mma mmb mmd mme mmf mmi mmk mmm mmo mmr mmt moa mob mod moe mof moi mok mom moo mor mot mra mrb mrd mre mrf mri mrk mrm mro mrr mrt mta mtb mtd mte mtf mti mtk mtm mto mtr mtt o-i oaa oab oad oae oaf oai oak oam oao oar oat ob- oba obb obd obe obf obi obk obm obo obr obt oda odb odd ode odf odi odm odo odr odt oea oeb oed oee oef oei oem oeo oer oet of- ofa ofb ofd ofe off ofi ofm