-er a-a a-b a-i a-t aaa aab aad aae aai aak aam aao aar aas aat ab- aba abb abd abe abi abk abm abo abr abs abt ad- ada adb add ade adi adk adm ado adr ads adt aea aeb aed aee aei aek aem aeo aer aes aet ai- aia aib aid aie aii aik aim aio air ais ait aka akb akd ake aki akk akm ako akr aks ama amb amd ame ami amk amm amo amr ams amt aoa aob aod aoe aoi aok aom aoo aor aos aot ar- ara arb ard are ari ark arm aro arr ars art as- asa asb asd ase asi ask asm aso asr ass ast at- ata atb atd ate ati atm ato atr ats att baa bab bad bae bai bak bam bao bar bas bat bba bbb bbd bbe bbi bbk bbm bbo bbr bbs bbt bda bdb bdd bde bdi bdk bdm bdo bdr bds bdt be- bea beb bed bee bei bek bem beo ber bes bet bi- bia bib bid bie bii bik bim bio bir bis bit bka bkb bke bkk bkm bko bkr bks bkt bma bmb bmd bme bmi bmk bmm bmo bmr bms bmt boa bob bod boe boi bok bom boo bor bos bot bra brb brd bre bri brk brm bro brr brs brt bsa bsb bsd bse bsi bsk bsm bso bsr bss bst bta btb btd bte bti btk btm bto btr bts btt daa dab dad dae dai dak dam dao dar das dat dba dbb dbd dbe dbi dbk dbm dbo dbr dbs dbt dda ddb ddd dde ddi ddk ddm ddo ddr dds ddt de- dea deb ded dee dei dek dem deo der des det di- dia dib did die dii dik dim dio dir dis dit dka dkb dke dki dkk dkm dko dkr dks dkt dma dmb dmd dme dmi dmk dmm dmo dmr dms dmt doa dob dod doe doi dok dom doo dor dos dot dra drb drd dre dri drk drm dro drr drs drt dsa dsb dsd dse dsi dsk dsm dso dsr dss dst dta dtb dtd dte dti dtk dtm dto dtr dts dtt eaa eab ead eae eai eak eam eao ear eas eat eba ebb ebd ebe ebi ebk ebm ebo ebr ebs ebt ed- eda edb edd ede edi edk edm edo edr eds edt eea eeb eed eee eek eem eeo eer ees eet eia eib eid eie eii eik eim eio eir eis eit eka ekb ekd eke eki eko ekr eks ekt em- ema emb emd eme emi emk emm emo emr ems emt eo- eoa eob eod eoe eoi eok eom eoo eor eos eot era erb erd ere eri erk erm ero err ers ert es- esa esb esd ese esi esk esm eso esr ess est eta etb etd ete eti etk etm eto etr ets ett i-d ia- iaa iab iad iae iai iam iao iar ias iat iba ibb ibd ibe ibi ibk ibm ibo ibr ibs ibt ida idb idd ide idi idk idm ido idr ids idt ie- iea ied iee iei iek iem ier ies iet iia iib iid iie iii iim iio iir iis iit ika ikb ike iki ikk iko ikr iks ikt im- ima imb imd ime imi imm imo ims imt io- ioa iob iod ioe ioi iom ioo ior ios iot ir- ira irb ird ire iri irk irm iro irr irs irt is- isa isb isd ise isi isk ism iso isr iss ist ita itb itd ite iti itk itm ito its itt k-t ka- kaa kab kad kae kai kak kam kao kar kas kat kba kbb kbd kbe kbi kbk kbm kbo kbr kbs kda kdb kde kdk kdm kdo kdr kds kdt ke- kea keb ked kee kei kek kem keo ker kes ket kia kib kid kie kii kik kim kio kir kis kit kkb kke kki kkk kkm kkr kks kkt kma kmb kmd kme kmi kmk kmm kmo kms kmt koa kob kod koe koi kok kom koo kor kos kot kra krd kri krk kro krr krs krt ksa ksb ksd kse ksi ksk ksm kso ksr kss kst kta ktb kte ktk ktm kto ktr kts ktt m-o m-r maa mab mad mae mai mak mam mao mar mas mat mba mbb mbd mbe mbi mbk mbm mbo mbr mbs mbt mda mdb mdd mde mdi mdk mdm mdo mdr mds mdt mea meb med mee mei mek mem meo mer mes met mi- mia mib mid mie mii mik mim mio mir mis mit mka mkb mkd mke mkk mkm mko mkr mks mkt mma mmb mmd mme mmi mmk mmm mmo mmr mms mmt moa mob mod moe moi mok mom moo mor mos mot mra mrb mrd mre mri mrk mrm mro mrr mrs mrt msa msb msd mse msi msk msm mso msr mss mst mta mtb mtd mte mti mtk mtm mto mtr mts mtt o-i oaa oab oad oae oai oak oam oao oar oas oat ob- oba obb obd obe obi obk obm obo obr obs obt oda odb odd ode odi odm odo odr ods odt oea oeb oed oee oei oem oeo oer oes oet oia oib oid oie oii oik oim oio oir ois oit oka okb okd oke oki okk oko okr oks om- oma omb omd ome omi omm omo omr oms omt oo- ooa oob ood ooi ook oom ooo oor oos oot or- ora orb ord ore ori ork orm oro orr ors ort os- osa osb osd ose osi osk osm oso osr oss ost ot- ota otb otd ote oti otk otm oto otr ots ott ra- raa rab rad rae rai rak ram rao rar ras rat rba rbb rbd rbe rbi rbk rbm rbo rbr rbs rbt rda rdb rdd rde rdi rdm rdo