-al -er a-a a-b a-t aaa aab aae aal aan aar aat aau ab- aba abb abe abl abn abr abt abu aea aeb aee ael aen aer aet aeu al- ala alb ale all aln alr alt alu an- ana anb ane anl ann anr ant anu ar- ara arb are arl arn arr art aru at- ata atb ate atl atn atr att atu au- aua aub aue aul aun aur aut b-u baa bab bae bal ban bar bat bau bba bbb bbe bbl bbn bbr bbt bbu be- bea beb bee bel ben ber bet beu bla blb ble bll bln blr blt blu bna bnb bne bnl bnn bnr bnt bnu bra brb bre brl brn brr brt bru bta btb bte btl btn btr btt btu bua bub bue bul bun bur but buu eaa eab eae eal ean ear eat eau eba ebb ebe ebl ebn ebr ebt ebu eea eeb eee eel een eer eet ela elb ele ell eln elr elt elu en- ena enb ene enl enn enr ent enu era erb ere erl ern err ert eru eta etb ete etl etn etr ett etu eu- eua eub eue eul eun eur eut la- laa lab lae lal lan lar lat lau lba lbb lbe lbl lbr lbt lbu lea leb lee lel len ler let leu lla llb lle lll lln llr llt llu lna lnb lne lnl lnn lnr lnt lnu lra lrb lrn lrr lrt lru lta ltb lte ltl ltr ltt ltu lua lub lue lul lun lur lut luu naa nab nae nal nan nar nat nau nba nbb nbe nbl nbn nbr nbt nbu ne- nea neb nee nel nen ner net neu nla nlb nle nll nln nlr nlt nlu nna nnb nne nnl nnn nnt nnu nra nrb nre nrl nrn nrr nrt nru nta ntb nte ntn ntr ntt ntu nua nub nue nul nun nur nut nuu ra- raa rab rae ral ran rar rat rau rba rbb rbe rbl rbn rbr rbt rbu re- rea reb ree rel ren rer ret reu rla rle rll rln rlr rlt rlu rna rnb rnn rnr rnt rnu rra rrb rrl rrn rrr rrt rru rta rtb rte rtl rtn rtr rtt rtu rua rub rue run rur rut ruu taa tab tae tal tan tar tat tau tba tbb tbe tbl tbn tbr tbt tbu te- tea teb tee tel ten ter tet teu tla tle tll tln tlr tlt tlu tna tnb tne tnl tnn tnr tnt tra trb tre trl trn trr trt tru tta ttb tte ttl ttn ttr ttt ttu tua tub tue tul tun tur tut tuu ua- uaa uab uae ual uan uar uat uau uba ubb ube ubl ubn ubr ubt ubu uea ueb uee uel uen uer uet ula ulb ule ull uln ulr ult ulu un- una unb une unl unn unr unt unu ur- ura urb ure url urn urr urt uru uta utb ute utl utn utr utt utu uua uue uun uur uut uuu