-al -er a-a a-b aaa aab aae aag aal aar aas aau ab- aba abb abe abg abl abr abs abu aea aeb aee aeg ael aer aes aeu ag- aga agb age agg agl agr ags agu al- ala alb ale alg all alr als alu ar- ara arb are arg arl arr ars aru as- asa asb ase asg asl asr ass asu au- aua aub aue aug aul aur aus b-u baa bab bae bag bal bar bas bau bba bbb bbe bbg bbl bbr bbs bbu be- bea beb bee beg bel ber bes beu bga bgb bge bgg bgl bgr bgs bgu bla blb ble blg bll blr bls blu bra brb bre brg brl brr brs bru bsa bsb bse bsg bsl bsr bss bsu bua bub bue bug bul bur bus buu eaa eab eae eag eal ear eas eau eba ebb ebe ebg ebl ebr ebs ebu eea eeb eee eeg eel eer ees ega egb ege egg egl egr egs egu ela elb ele elg ell elr els elu era erb ere erg erl err ers eru es- esa esb ese esg esl esr ess esu eu- eua eub eue eug eul eur eus gaa gab gae gag gal gar gas gau gba gbe gbg gbl gbr gbs gbu ge- gea geb gee geg gel ger ges geu gga ggb ggg ggr ggs ggu gla glb gle glg gll glr gls glu gra grb gre grg grl grr grs gru gsa gsb gse gsg gsl gsr gss gsu gu- gua gub gue gug gul gur gus guu la- laa lab lae lag lal lar las lau lba lbb lbe lbg lbl lbr lbs lbu lea leb lee leg lel ler les leu lga lgb lge lgg lgl lgr lgs lgu lla llb lle llg lll llr lls llu lra lrb lrg lrr lrs lru lsa lsb lse lsg lsl lsr lss lsu lua lub lue lug lul lur lus luu ra- raa rab rae rag ral rar ras rau rba rbb rbe rbg rbl rbr rbs rbu re- rea reb ree reg rel rer res reu rga rgb rge rgg rgr rgs rla rle rlg rll rlr rls rlu rra rrb rrg rrl rrr rrs rru rsa rsb rse rsg rsl rsr rss rsu rua rub rue rug rur rus ruu saa sab sae sag sal sar sas sau sba sbb sbe sbg sbl sbr sbs sbu se- sea seb see seg sel ser ses seu sga sgb sge sgg sgl sgr sgs sgu sla slb sle slg sll slr sls slu sr- sra srb sre srg srl srr srs ss- ssa ssb sse ssg ssl ssr sss ssu sua sub sue sug sul sur sus suu ua- uaa uab uae uag ual uar uas uau uba ubb ube ubg ubl ubr ubs ubu uea ueb uee ueg uel uer ues uga ugb uge ugg ugl ugr ugs ugu ula ulb ule ulg ull ulr uls ulu ur- ura urb ure urg url urr urs uru usa usb use usg usl usr uss usu uua uue uug uur uus uuu