a-a a-b a-i aaa aab aad aai aak aar aau ab- aba abb abd abi abk abr abu ad- ada adb add adi adk adr adu ai- aia aib aid aii aik air aiu aka akb akd aki akk akr aku ar- ara arb ard ari ark arr aru au- aua aub aud aui auk aur b-u baa bab bad bai bak bar bau bba bbb bbd bbi bbk bbr bbu bda bdb bdd bdi bdk bdr bdu bi- bia bib bid bii bik bir biu bka bkb bkk bkr bra brb brd bri brk brr bru bua bub bud bui buk bur buu daa dab dad dai dak dar dau dba dbb dbd dbi dbk dbr dbu dda ddb ddd ddi ddk ddr ddu di- dia dib did dii dik dir diu dka dkb dki dkk dkr dku dra drb drd dri drk drr dru dua dub dud dui duk dur i-d ia- iaa iab iad iai iar iau iba ibb ibd ibi ibk ibr ibu ida idb idd idi idk idr idu iia iib iid iii iir iiu ika ikb iki ikk ikr iku ir- ira irb ird iri irk irr iru iu- iua iub iud iui iur ka- kaa kab kad kai kak kar kau kba kbb kbd kbi kbk kbr kbu kda kdb kdk kdr kdu kia kib kid kii kik kir kiu kkb kki kkk kkr kku kra krd kri krk krr kru kub kud kui kuk kur kuu ra- raa rab rad rai rak rar rau rba rbb rbd rbi rbk rbr rbu rda rdb rdd rdi rdr rdu ria rib rid rii rik rir rkb rkk rku rra rrb rrd rri rrk rrr rru rua rub rud rui ruk rur ruu ua- uaa uab uad uai uak uar uau uba ubb ubi ubk ubr ubu uda udb udd udi udk udr udu uia uib uid uii uir uiu uka ukb uki ukk ukr uku ur- ura urb urd uri urk urr uru uua uur uuu