-er a-a aaa aae aak aam aar aau aea aee aek aem aer aeu aka ake akk akm akr aku ama ame amk amm amr amu ar- ara are ark arm arr aru au- aua aue auk aum aur eaa eae eak eam ear eau eea eee eek eem eer eka eke ekr eku em- ema eme emk emm emr emu era ere erk erm err eru eu- eua eue eur ka- kaa kae kak kam kar kau ke- kea kee kek kem ker kke kkk kkm kkr kku kma kme kmk kmm kmu kra krk krr kru kue kuk kum kur kuu m-r maa mae mak mam mar mau mea mee mek mem mer meu mka mke mkk mkm mkr mku mma mme mmk mmm mmr mmu mra mre mrk mrm mrr mru mua mue muk mum mur muu ra- raa rae rak ram rar rau re- rea ree rek rem rer reu rke rkk rkm rku rma rme rmm rmr rra rrk rrm rrr rru rua rue ruk rum rur ruu ua- uaa uae uak uam uar uau uea uee uem uer uka uke ukk ukr uku um- uma ume umm umr umu ur- ura ure urk urm urr uru uua uue uum uur uuu