-al -er -ol a-a a-b aaa aab aae aaf aag aal aao aar aas aau aax ab- aba abb abe abf abg abl abo abr abs abu abx aea aeb aee aef aeg ael aeo aer aes aeu aex af- afa afb afe aff afg afl afo afr afs afu afx ag- aga agb age agf agg agl ago agr ags agu agx al- ala alb ale alf alg all alo alr als alu alx aoa aob aoe aof aog aol aoo aor aos aou aox ar- ara arb are arf arg arl aro arr ars aru arx as- asa asb ase asf asg asl aso asr ass asu asx au- aua aub aue auf aug aul auo aur aus aux ax- axa axe axl axo axr axs axx b-u baa bab bae baf bag bal bao bar bas bau bax bba bbb bbe bbf bbg bbl bbo bbr bbs bbu bbx be- bea beb bee bef beg bel beo ber bes beu bex bfa bfb bfe bff bfg bfl bfo bfr bfs bfu bfx bga bgb bge bgf bgg bgl bgo bgr bgs bgu bgx bla blb ble blf blg bll blo blr bls blu blx boa bob boe bof bog bol boo bor bos bou box bra brb bre brf brg brl bro brr brs bru brx bsa bsb bse bsf bsg bsl bso bsr bss bsu bsx bua bub bue buf bug bul buo bur bus buu bux bxb bxl bxo bxx eaa eab eae eaf eag eal eao ear eas eau eax eba ebb ebe ebf ebg ebl ebo ebr ebs ebu ebx eea eeb eee eef eeg eel eeo eer ees eex ef- efa efb efe eff efg efl efo efr efs efx ega egb ege egf egg egl ego egr egs egu egx ela elb ele elf elg ell elo elr els elu elx eo- eoa eob eoe eof eog eol eoo eor eos eou era erb ere erf erg erl ero err ers eru es- esa esb ese esf esg esl eso esr ess esu esx eu- eua eub eue euf eug eul eur eus eux ex- exa exe exl exo exr exs exu exx faa fab fae faf fag fal fao far fas fau fax fba fbb fbe fbf fbg fbl fbo fbr fbs fbu fbx fea feb fee fef feg fel feo fer fes feu fex ffa ffe fff ffg ffl ffo ffr ffs ffu ffx fga fgb fge fgf fgg fgl fgr fgs fla flb fle flf flg fll flo flr fls flu flx foa fob foe fof fog fol foo for fos fou fox fra frb fre frf frg frl fro frr frs fru fsa fsb fse fsf fsg fsl fso fsr fss fsu fsx fua fub fue fuf fug ful fuo fur fus fuu fux fxe fxg fxr fxs fxu fxx gaa gab gae gaf gag gal gao gar gas gau gba gbe gbf gbg gbl gbo gbr gbs gbu gbx ge- gea geb gee gef geg gel geo ger ges geu gex gfa gfb gfe gff gfl gfo gfr gfs gfx gga ggb ggg ggo ggr ggs ggu gla glb gle glf glg gll glo glr gls glu glx goa gob goe gof gog gol goo gor gos gou gox gra grb gre grf grg grl gro grr grs gru grx gsa gsb gse gsf gsg gsl gso gsr gss gsu gsx gu- gua gub gue guf gug gul guo gur gus guu gxa gxf gxl gxs la- laa lab lae laf lag lal lao lar las lau lax lba lbb lbe lbf lbg lbl lbo lbr lbs lbu lbx lea leb lee lef leg lel leo ler les leu lex lfa lfb lfe lff lfg lfl lfo lfr lfs lfu lfx lga lgb lge lgf lgg lgl lgo lgr lgs lgu lla llb lle llf llg lll llo llr lls llu loa lob loe lof log lol loo lor los lou lox lra lrb lrf lrg lro lrr lrs lru lsa lsb lse lsf lsg lsl lso lsr lss lsu lua lub lue luf lug lul luo lur lus luu lux lxo lxr lxx oaa oab oae oaf oag oal oao oar oas oau oax ob- oba obb obe obf obg obl obo obr obs obu obx oea oeb oee oef oeg oel oeo oer oes oex of- ofa ofb ofe off ofg ofl ofo ofr ofs ofu ofx oga oge ogf ogg ogl ogo ogs ogx ola olb ole olf olg oll olo ols olu oo- ooa oob oof oog ool ooo oor oos oox or- ora orb ore orf org orl oro orr ors oru orx os- osa osb ose osf osg osl oso osr oss osu osx ou- oua oue ouf oul ouo our ous ox- oxa oxb oxf oxo oxx ra- raa rab rae raf rag ral rao rar ras rau rax rba rbb rbe rbf rbg rbl rbo rbr rbs rbu rbx re- rea reb ree ref reg rel reo rer res reu rex rfa rfb rfe rff rfg rfl rfo rfr rfs rfu rga rgb rge rgf rgg rgo rgr rgs rgx rla rle rlf rlg rll rlo rlr rls rlu roa rob roe rof rog rol roo ror ros rou rox rra rrb rrf rrg rrl rrr rrs rru rsa rsb rse rsf rsg rsl rso rsr rss rsu rsx rua rub rue ruf rug ruo rur rus ruu rux rxr rxs saa sab sae saf sag sal sao sar sas sau sax sba sbb sbe sbf sbg sbl sbo sbr sbs sbu sbx se- sea seb see sef seg sel seo ser ses seu sex sfa sfb sfe sff sfg sfl sfo sfr sfs sfu sfx sga sgb sge sgf sgg sgl sgo sgr sgs sgu sgx sla slb sle slf slg sll slo slr sls slu slx soa sob soe sof sog sol soo sor sos sou sox sr- sra srb sre srf srg srl sro srr srs srx ss- ssa ssb sse ssf ssg ssl sso