a-a a-b aaa aab aad aaj aan aar aau ab- aba abb abd abj abn abr abu ad- ada adb add adj adn adr adu aja ajb ajd ajj ajn ajr aju an- ana anb and anj ann anr anu ar- ara arb ard arj arn arr aru au- aua aub aud auj aun aur b-u baa bab bad baj ban bar bau bba bbb bbd bbn bbr bbu bda bdb bdd bdj bdr bdu bja bjd bjj bjn bjr bju bna bnb bnd bnj bnn bnr bnu bra brb brd brj brn brr bru bua bub bud buj bun bur buu daa dab dad daj dan dar dau dba dbb dbd dbn dbr dbu dda ddb ddd ddn ddr ddu dj- dja djb djd dna dnb dnd dnj dnn dnr dra drb drd drj drn drr dru dua dub dud dun dur j-d jaa jab jad jaj jan jar jau jba jbj jbr jbu jda jdb jdn jdr jja jjb jjj jjr jju jna jnd jnj jnn jnr jnu jra jrb jrn jrr jub jud jun jur naa nab nad naj nan nar nau nba nbb nbd nbn nbr nbu nda ndb ndd ndn ndr ndu nja njn nju nna nnb nnn nnu nra nrb nrd nrj nrn nrr nru nua nub nud nuj nun nur nuu ra- raa rab rad raj ran rar rau rba rbb rbd rbn rbr rbu rda rdb rdd rdj rdn rdr rdu rja rjr rna rnb rnd rnn rnr rnu rra rrb rrd rrn rrr rru rua rub rud run rur ruu ua- uaa uab uad uaj uan uar uau uba ubb ubn ubr ubu uda udb udd udj udn udr udu un- una unb und unn unr unu ur- ura urb urd urn urr uru uua uun uur uuu