-er a-a a-b a-t aaa aab aae aaj aan aar aat aau ab- aba abb abe abj abn abr abt abu aea aeb aee aej aen aer aet aeu aja ajb aje ajj ajn ajr ajt aju an- ana anb ane anj ann anr ant anu ar- ara arb are arj arn arr art aru at- ata atb ate atn atr att atu au- aua aub aue auj aun aur aut b-u baa bab bae baj ban bar bat bau bba bbb bbe bbn bbr bbt bbu be- bea beb bee ben ber bet beu bja bjj bjn bjr bjt bju bna bnb bne bnj bnn bnr bnt bnu bra brb bre brj brn brr brt bru bta btb bte btn btr btt btu bua bub bue buj bun bur but buu eaa eab eae eaj ean ear eat eau eba ebb ebe ebj ebn ebr ebt ebu eea eeb eee een eer eet eja ejt eju en- ena enb ene enn enr ent enu era erb ere ern err ert eru eta etb ete etj etn etr ett etu eu- eua eub eue euj eun eur eut jaa jab jae jaj jan jar jat jau jba jbj jbr jbt jbu jea jeb jee jej jen jer jet jeu jja jjb jjj jjr jju jna jne jnj jnn jnr jnt jnu jra jrb jrn jrr jrt jta jtb jte jtn jtr jtt jtu jub jue jun jur jut naa nab nae naj nan nar nat nau nba nbb nbe nbn nbr nbt nbu ne- nea neb nee nej nen ner net neu nja nje njn nju nna nnb nne nnn nnt nnu nra nrb nre nrj nrn nrr nrt nru nta ntb nte ntn ntr ntt ntu nua nub nue nuj nun nur nut nuu ra- raa rab rae raj ran rar rat rau rba rbb rbe rbn rbr rbt rbu re- rea reb ree ren rer ret reu rja rjr rna rnb rnn rnr rnt rnu rra rrb rrn rrr rrt rru rta rtb rte rtj rtn rtr rtt rtu rua rub rue run rur rut ruu taa tab tae taj tan tar tat tau tba tbb tbe tbj tbn tbr tbt tbu te- tea teb tee tej ten ter tet teu tje tjr tju tna tnb tne tnn tnr tnt tra trb tre trn trr trt tru tta ttb tte ttn ttr ttt ttu tua tub tue tuj tun tur tut tuu ua- uaa uab uae uaj uan uar uat uau uba ubb ube ubn ubr ubt ubu uea ueb uee uen uer uet un- una unb une unn unr unt unu ur- ura urb ure urn urr urt uru uta utb ute utj utn utr utt utu uua uue uun uur uut uuu