a-a a-b aaa aab aad aaj aar aau ab- aba abb abd abj abr abu ad- ada adb add adj adr adu aja ajb ajd ajj ajr aju ar- ara arb ard arj arr aru au- aua aub aud auj aur b-u baa bab bad baj bar bau bba bbb bbd bbr bbu bda bdb bdd bdj bdr bdu bja bjd bjj bjr bju bra brb brd brj brr bru bua bub bud buj bur buu daa dab dad daj dar dau dba dbb dbd dbr dbu dda ddb ddd ddr ddu dj- dja djb djd dra drb drd drj drr dru dua dub dud dur j-d jaa jab jad jaj jar jau jba jbj jbr jbu jda jdb jdr jja jjb jjj jjr jju jra jrb jrr jub jud jur ra- raa rab rad raj rar rau rba rbb rbd rbr rbu rda rdb rdd rdj rdr rdu rja rjr rra rrb rrd rrr rru rua rub rud rur ruu ua- uaa uab uad uaj uar uau uba ubb ubr ubu uda udb udd udj udr udu ur- ura urb urd urr uru uua uur uuu