-er a-a a-b a-i aaa aab aae aah aai aan aar aau ab- aba abb abe abh abi abn abr abu aea aeb aee aeh aei aen aer aeu aha ahb ahe ahh ahi ahn ahr ahu ai- aia aib aie aih aii ain air aiu an- ana anb ane anh ani ann anr anu ar- ara arb are arh ari arn arr aru au- aua aub aue auh aui aun aur b-u baa bab bae bah bai ban bar bau bba bbb bbe bbh bbi bbn bbr bbu be- bea beb bee beh bei ben ber beu bha bhb bhe bhh bhi bhr bhu bi- bia bib bie bih bii bin bir biu bna bnb bne bni bnn bnr bnu bra brb bre brh bri brn brr bru bua bub bue buh bui bun bur buu eaa eab eae eah eai ean ear eau eba ebb ebe ebh ebi ebn ebr ebu eea eeb eee een eer eha ehb ehe ehh ehi ehn ehr ehu eia eib eie eii ein eir eiu en- ena enb ene enh eni enn enr enu era erb ere erh eri ern err eru eu- eua eub eue eui eun eur h-i haa hab hae hah hai han har hau hba hbb hbe hbh hbi hbn hbr hbu he- hea heb hee heh hei hen her heu hha hhb hhe hhh hhi hhn hhr hhu hia hib hie hih hii hin hir hiu hna hnb hne hnh hnn hnu hr- hra hrb hre hrh hri hrn hrr hru hua hub hue huh hui hun hur huu ia- iaa iab iae iah iai ian iar iau iba ibb ibe ibh ibi ibn ibr ibu ie- iea iee iei ien ier iha ihb ihe ihh ihi ihn ihr ihu iia iib iie iih iii iin iir iiu in- ina inb ine inh ini inn inr inu ir- ira irb ire iri irn irr iru iu- iua iub iue iui iur n-i naa nab nae nah nai nan nar nau nba nbb nbe nbi nbn nbr nbu ne- nea neb nee neh nei nen ner neu nha nhb nhe nhh nhi nhn nhr nhu nia nib nie nih nii nin nir niu nna nnb nne nnh nni nnn nnu nra nrb nre nri nrn nrr nru nua nub nue nuh nui nun nur nuu ra- raa rab rae rah rai ran rar rau rba rbb rbe rbh rbi rbn rbr rbu re- rea reb ree reh rei ren rer reu rh- rha rhb rhe rhh rhi rhn rhr rhu ria rib rie rih rii rin rir rna rnb rnh rni rnn rnr rnu rra rrb rrh rri rrn rrr rru rua rub rue ruh rui run rur ruu ua- uaa uab uae uah uai uan uar uau uba ubb ube ubh ubi ubn ubr ubu uea ueb uee ueh uei uen uer uha uhb uhe uhh uhi uhr uhu uia uib uie uii uin uir uiu un- una unb une unh uni unn unr unu ur- ura urb ure uri urn urr uru uua uue uun uur uuu