-er a-a a-b a-i aaa aab aae aai aak aam aar aas aau ab- aba abb abe abi abk abm abr abs abu aea aeb aee aei aek aem aer aes aeu ai- aia aib aie aii aik aim air ais aiu aka akb ake aki akk akm akr aks aku ama amb ame ami amk amm amr ams amu ar- ara arb are ari ark arm arr ars aru as- asa asb ase asi ask asm asr ass asu au- aua aub aue aui auk aum aur aus b-u baa bab bae bai bak bam bar bas bau bba bbb bbe bbi bbk bbm bbr bbs bbu be- bea beb bee bei bek bem ber bes beu bi- bia bib bie bii bik bim bir bis biu bka bkb bke bkk bkm bkr bks bma bmb bme bmi bmk bmm bmr bms bmu bra brb bre bri brk brm brr brs bru bsa bsb bse bsi bsk bsm bsr bss bsu bua bub bue bui buk bum bur bus buu eaa eab eae eai eak eam ear eas eau eba ebb ebe ebi ebk ebm ebr ebs ebu eea eeb eee eek eem eer ees eia eib eie eii eik eim eir eis eiu eka ekb eke eki ekr eks eku em- ema emb eme emi emk emm emr ems emu era erb ere eri erk erm err ers eru es- esa esb ese esi esk esm esr ess esu eu- eua eub eue eui eur eus ia- iaa iab iae iai iam iar ias iau iba ibb ibe ibi ibk ibm ibr ibs ibu ie- iea iee iei iek iem ier ies iia iib iie iii iim iir iis iiu ika ikb ike iki ikk ikr iks iku im- ima imb ime imi imm ims imu ir- ira irb ire iri irk irm irr irs iru is- isa isb ise isi isk ism isr iss isu iu- iua iub iue iui ium iur ius ka- kaa kab kae kai kak kam kar kas kau kba kbb kbe kbi kbk kbm kbr kbs kbu ke- kea keb kee kei kek kem ker kes kia kib kie kii kik kim kir kis kiu kkb kke kki kkk kkm kkr kks kku kma kmb kme kmi kmk kmm kms kmu kra kri krk krr krs kru ksa ksb kse ksi ksk ksm ksr kss ksu kub kue kui kuk kum kur kus kuu m-r maa mab mae mai mak mam mar mas mau mba mbb mbe mbi mbk mbm mbr mbs mbu mea meb mee mei mek mem mer mes meu mi- mia mib mie mii mik mim mir mis miu mka mkb mke mkk mkm mkr mks mku mma mmb mme mmi mmk mmm mmr mms mmu mra mrb mre mri mrk mrm mrr mrs mru msa msb mse msi msk msm msr mss msu mua mub mue mui muk mum mur mus muu ra- raa rab rae rai rak ram rar ras rau rba rbb rbe rbi rbk rbm rbr rbs rbu re- rea reb ree rei rek rem rer res reu ria rib rie rii rik rim rir ris rkb rke rkk rkm rks rku rma rmb rme rmi rmm rmr rms rra rrb rri rrk rrm rrr rrs rru rsa rsb rse rsi rsk rsm rsr rss rsu rua rub rue rui ruk rum rur rus ruu saa sab sae sai sak sam sar sas sau sba sbb sbe sbi sbk sbm sbr sbs sbu se- sea seb see sei sek sem ser ses seu sia sib sie sii sik sim sir sis siu sk- ska skb ske ski skk skm skr sks sku sma smb sme smi smk smm smr sms smu sr- sra srb sre sri srk srm srr srs ss- ssa ssb sse ssi ssk ssm ssr sss ssu sua sub sue sui suk sum sur sus suu ua- uaa uab uae uai uak uam uar uas uau uba ubb ube ubi ubk ubr ubs ubu uea ueb uee uei uem uer ues uia uib uie uii uim uir uis uiu uka ukb uke uki ukk ukr uku um- uma umb ume umi umm umr ums umu ur- ura urb ure uri urk urm urr urs uru usa usb use usi usk usm usr uss usu uua uue uum uur uus uuu