-al -er a-a a-b a-i aaa aab aae aag aai aal aar aas aau ab- aba abb abe abg abi abl abr abs abu aea aeb aee aeg aei ael aer aes aeu ag- aga agb age agg agi agl agr ags agu ai- aia aib aie aig aii ail air ais aiu al- ala alb ale alg ali all alr als alu ar- ara arb are arg ari arl arr ars aru as- asa asb ase asg asi asl asr ass asu au- aua aub aue aug aui aul aur aus b-u baa bab bae bag bai bal bar bas bau bba bbb bbe bbg bbi bbl bbr bbs bbu be- bea beb bee beg bei bel ber bes beu bga bgb bge bgg bgi bgl bgr bgs bgu bi- bia bib bie big bii bil bir bis biu bla blb ble blg bli bll blr bls blu bra brb bre brg bri brl brr brs bru bsa bsb bse bsg bsi bsl bsr bss bsu bua bub bue bug bui bul bur bus buu eaa eab eae eag eai eal ear eas eau eba ebb ebe ebg ebi ebl ebr ebs ebu eea eeb eee eeg eel eer ees ega egb ege egg egi egl egr egs egu eia eib eie eig eii eil eir eis eiu ela elb ele elg eli ell elr els elu era erb ere erg eri erl err ers eru es- esa esb ese esg esi esl esr ess esu eu- eua eub eue eug eui eul eur eus gaa gab gae gag gai gal gar gas gau gba gbe gbg gbi gbl gbr gbs gbu ge- gea geb gee geg gei gel ger ges geu gga ggb ggg ggi ggr ggs ggu gia gib gie gig gii gil gir gis giu gla glb gle glg gli gll glr gls glu gra grb gre grg gri grl grr grs gru gsa gsb gse gsg gsi gsl gsr gss gsu gu- gua gub gue gug gui gul gur gus guu ia- iaa iab iae iag iai ial iar ias iau iba ibb ibe ibg ibi ibl ibr ibs ibu ie- iea iee ieg iei iel ier ies iga igb ige igg igi igl igr igs igu iia iib iie iii iil iir iis iiu il- ila ilb ile ilg ili ill ilr ils ilu ir- ira irb ire irg iri irl irr irs iru is- isa isb ise isg isi isl isr iss isu iu- iua iub iue iug iui iur ius la- laa lab lae lag lai lal lar las lau lba lbb lbe lbg lbi lbl lbr lbs lbu lea leb lee leg lei lel ler les leu lga lgb lge lgg lgi lgl lgr lgs lgu lia lib lie lig lii lil lir lis liu lla llb lle llg lli lll llr lls llu lra lrb lrg lri lrr lrs lru lsa lsb lse lsg lsi lsl lsr lss lsu lua lub lue lug lui lul lur lus luu ra- raa rab rae rag rai ral rar ras rau rba rbb rbe rbg rbi rbl rbr rbs rbu re- rea reb ree reg rei rel rer res reu rga rgb rge rgg rgi rgr rgs ria rib rie rig rii ril rir ris rla rle rlg rli rll rlr rls rlu rra rrb rrg rri rrl rrr rrs rru rsa rsb rse rsg rsi rsl rsr rss rsu rua rub rue rug rui rur rus ruu saa sab sae sag sai sal sar sas sau sba sbb sbe sbg sbi sbl sbr sbs sbu se- sea seb see seg sei sel ser ses seu sga sgb sge sgg sgi sgl sgr sgs sgu sia sib sie sig sii sil sir sis siu sla slb sle slg sli sll slr sls slu sr- sra srb sre srg sri srl srr srs ss- ssa ssb sse ssg ssi ssl ssr sss ssu sua sub sue sug sui sul sur sus suu ua- uaa uab uae uag uai ual uar uas uau uba ubb ube ubg ubi ubl ubr ubs ubu uea ueb uee ueg uei uel uer ues uga ugb uge ugg ugi ugl ugr ugs ugu uia uib uie uig uii uil uir uis uiu ula ulb ule ulg uli ull ulr uls ulu ur- ura urb ure urg uri url urr urs uru usa usb use usg usi usl usr uss usu uua uue uug uur uus uuu