-er a-a aaa aae aaf aak aam aan aao aar aea aee aef aek aem aen aeo aer af- afa afe aff afk afm afn afo afr aka ake akk akm akn ako akr ama ame amf amk amm amn amo amr an- ana ane anf ank anm ann ano anr aoa aoe aof aok aom aon aoo aor ar- ara are arf ark arm arn aro arr eaa eae eaf eak eam ean eao ear eea eee eef eek eem een eeo eer ef- efa efe eff efm efo efr eka eke ekf eko ekr em- ema eme emf emk emm emn emo emr en- ena ene enf enk enm enn eno enr eo- eoa eoe eof eok eom eon eoo eor era ere erf erk erm ern ero err faa fae faf fak fam fan fao far fea fee fef fek fem fen feo fer ffa ffe fff ffk ffm ffn ffo ffr fka fkf fkk fkm fma fme fmf fmm fmn fmo fmr fna fne fnf fnk fnm fnn fnr foa foe fof fok fom fon foo for fra fre frf frk frm frn fro frr ka- kaa kae kaf kak kam kan kao kar ke- kea kee kef kek kem ken keo ker kfa kff kfm kfo kke kkk kkm kkn kkr kma kme kmf kmk kmm kmo kn- kna kne knf knk knm knn kno knr koa koe kof kok kom kon koo kor kra krf krk krn kro krr m-f m-o m-r maa mae maf mak mam man mao mar mea mee mef mek mem men meo mer mfa mfe mff mfm mfn mfo mfr mka mke mkk mkm mkn mko mkr mma mme mmf mmk mmm mmn mmo mmr mna mne mnf mnk mnm mnn mno mnr moa moe mof mok mom mon moo mor mra mre mrf mrk mrm mrn mro mrr naa nae naf nak nam nan nao nar ne- nea nee nef nek nem nen neo ner nfa nfe nff nfk nfn nfo nfr nka nke nkf nkk nkm nkn nko nkr nma nme nmk nmm nmn nmo nmr nna nne nnf nnk nnm nnn nno no- noa noe nof nok nom non noo nor nra nre nrf nrk nrm nrn nro nrr oaa oae oaf oak oam oan oao oar oea oee oef oem oen oeo oer of- ofa ofe off ofm ofn ofo ofr oka oke okk oko okr om- oma ome omf omm omn omo omr on- ona one onf onk onn ono onr oo- ooa oof ook oom oon ooo oor or- ora ore orf ork orm orn oro orr ra- raa rae raf rak ram ran rao rar re- rea ree ref rek rem ren reo rer rfa rfe rff rfk rfm rfn rfo rfr rke rkf rkk rkm rko rma rme rmf rmm rmn rmo rmr rna rnm rnn rno rnr roa roe rof rok rom ron roo ror rra rrf rrk rrm rrn rrr