-er a-a a-b aaa aab aad aae aaj aan aar aau ab- aba abb abd abe abj abn abr abu ad- ada adb add ade adj adn adr adu aea aeb aed aee aej aen aer aeu aja ajb ajd aje ajj ajn ajr aju an- ana anb and ane anj ann anr anu ar- ara arb ard are arj arn arr aru au- aua aub aud aue auj aun aur b-u baa bab bad bae baj ban bar bau bba bbb bbd bbe bbn bbr bbu bda bdb bdd bde bdj bdr bdu be- bea beb bed bee ben ber beu bja bjd bjj bjn bjr bju bna bnb bnd bne bnj bnn bnr bnu bra brb brd bre brj brn brr bru bua bub bud bue buj bun bur buu daa dab dad dae daj dan dar dau dba dbb dbd dbe dbn dbr dbu dda ddb ddd dde ddn ddr ddu de- dea deb ded dee dej den der deu dj- dja djb djd dje dna dnb dnd dne dnj dnn dnr dra drb drd dre drj drn drr dru dua dub dud due dun dur eaa eab ead eae eaj ean ear eau eba ebb ebd ebe ebj ebn ebr ebu ed- eda edb edd ede edj edn edr edu eea eeb eed eee een eer eja ejd eju en- ena enb end ene enn enr enu era erb erd ere ern err eru eu- eua eub eud eue euj eun eur j-d jaa jab jad jae jaj jan jar jau jba jbj jbr jbu jda jdb jde jdn jdr jea jeb jed jee jej jen jer jeu jja jjb jjj jjr jju jna jnd jne jnj jnn jnr jnu jra jrb jrn jrr jub jud jue jun jur naa nab nad nae naj nan nar nau nba nbb nbd nbe nbn nbr nbu nda ndb ndd nde ndn ndr ndu ne- nea neb ned nee nej nen ner neu nja nje njn nju nna nnb nne nnn nnu nra nrb nrd nre nrj nrn nrr nru nua nub nud nue nuj nun nur nuu ra- raa rab rad rae raj ran rar rau rba rbb rbd rbe rbn rbr rbu rda rdb rdd rde rdj rdn rdr rdu re- rea reb red ree ren rer reu rja rjr rna rnb rnd rnn rnr rnu rra rrb rrd rrn rrr rru rua rub rud rue run rur ruu ua- uaa uab uad uae uaj uan uar uau uba ubb ube ubn ubr ubu uda udb udd ude udj udn udr udu uea ueb ued uee uen uer un- una unb und une unn unr unu ur- ura urb urd ure urn urr uru uua uue uun uur uuu