-al -er -ol a-a a-b a-i a-t aaa aab aae aaf aag aai aal aao aar aas aat ab- aba abb abe abf abg abi abl abo abr abs abt aea aeb aee aef aeg aei ael aeo aer aes aet af- afa afb afe aff afg afi afl afo afr afs aft ag- aga agb age agf agg agi agl ago agr ags agt ai- aia aib aie aif aig aii ail aio air ais ait al- ala alb ale alf alg ali all alo alr als alt aoa aob aoe aof aog aoi aol aoo aor aos aot ar- ara arb are arf arg ari arl aro arr ars art as- asa asb ase asf asg asi asl aso asr ass ast at- ata atb ate atf atg ati atl ato atr ats att baa bab bae baf bag bai bal bao bar bas bat bba bbb bbe bbf bbg bbi bbl bbo bbr bbs bbt be- bea beb bee bef beg bei bel beo ber bes bet bfa bfb bfe bff bfg bfi bfl bfo bfr bfs bft bga bgb bge bgf bgg bgi bgl bgo bgr bgs bgt bi- bia bib bie bif big bii bil bio bir bis bit bla blb ble blf blg bli bll blo blr bls blt boa bob boe bof bog boi bol boo bor bos bot bra brb bre brf brg bri brl bro brr brs brt bsa bsb bse bsf bsg bsi bsl bso bsr bss bst bta btb bte btf btg bti btl bto btr bts btt eaa eab eae eaf eag eai eal eao ear eas eat eba ebb ebe ebf ebg ebi ebl ebo ebr ebs ebt eea eeb eee eef eeg eel eeo eer ees eet ef- efa efb efe eff efg efi efl efo efr efs eft ega egb ege egf egg egi egl ego egr egs egt eia eib eie eif eig eii eil eio eir eis eit ela elb ele elf elg eli ell elo elr els elt eo- eoa eob eoe eof eog eoi eol eoo eor eos eot era erb ere erf erg eri erl ero err ers ert es- esa esb ese esf esg esi esl eso esr ess est eta etb ete etf etg eti etl eto etr ets ett faa fab fae faf fag fai fal fao far fas fat fba fbb fbe fbf fbg fbi fbl fbo fbr fbs fbt fea feb fee fef feg fei fel feo fer fes fet ffa ffe fff ffg ffi ffl ffo ffr ffs fft fga fgb fge fgf fgg fgi fgl fgr fgs fgt fia fib fie fif fig fii fil fir fis fit fla flb fle flf flg fli fll flo flr fls flt foa fob foe fof fog foi fol foo for fos fot fra frb fre frf frg fri frl fro frr frs frt fsa fsb fse fsf fsg fsi fsl fso fsr fss fst fta ftb fte ftf ftg fti ftl fto ftr fts ftt gaa gab gae gaf gag gai gal gao gar gas gat gba gbe gbf gbg gbi gbl gbo gbr gbs gbt ge- gea geb gee gef geg gei gel geo ger ges get gfa gfb gfe gff gfi gfl gfo gfr gfs gft gga ggb ggg ggi ggo ggr ggs ggt gia gib gie gif gig gii gil gio gir gis git gla glb gle glf glg gli gll glo glr gls glt goa gob goe gof gog goi gol goo gor gos got gra grb gre grf grg gri grl gro grr grs grt gsa gsb gse gsf gsg gsi gsl gso gsr gss gst gta gtb gte gtf gtg gti gtl gto gtr gts gtt i-f ia- iaa iab iae iaf iag iai ial iao iar ias iat iba ibb ibe ibf ibg ibi ibl ibo ibr ibs ibt ie- iea iee ief ieg iei iel ier ies iet ifa ifb ife iff ifg ifi ifl ifo ifr ifs ift iga igb ige igf igg igi igl igo igr igs igt iia iib iie iif iii iil iio iir iis iit il- ila ilb ile ilf ilg ili ill ilo ilr ils ilt io- ioa iob ioe iof iog ioi iol ioo ior ios iot ir- ira irb ire irf irg iri irl iro irr irs irt is- isa isb ise isf isg isi isl iso isr iss ist ita itb ite itf itg iti itl ito its itt la- laa lab lae laf lag lai lal lao lar las lat lba lbb lbe lbf lbg lbi lbl lbo lbr lbs lbt lea leb lee lef leg lei lel leo ler les let lfa lfb lfe lff lfg lfi lfl lfo lfr lfs lft lga lgb lge lgf lgg lgi lgl lgo lgr lgs lgt lia lib lie lif lig lii lil lio lir lis lit lla llb lle llf llg lli lll llo llr lls llt loa lob loe lof log loi lol loo lor los lot lra lrb lrf lrg lri lro lrr lrs lrt lsa lsb lse lsf lsg lsi lsl lso lsr lss lst lta ltb lte ltf ltg lti ltl lto ltr lts ltt o-i oaa oab oae oaf oag oai oal oao oar oas oat ob- oba obb obe obf obg obi obl obo obr obs obt oea oeb oee oef oeg oei oel oeo oer oes oet of- ofa ofb ofe off ofg ofi ofl ofo ofr ofs oft oga oge ogf ogg ogi ogl ogo ogs ogt oia oib oie oif oii oil oio oir ois oit ola olb ole olf olg oli oll olo ols olt oo- ooa oob oof oog ooi ool ooo oor oos oot or- ora orb ore orf org ori orl oro orr ors ort os- osa osb ose osf osg osi osl oso osr oss ost ot- ota otb ote otf otg oti otl oto otr ots ott ra- raa rab rae raf rag rai ral rao rar ras rat rba rbb rbe rbf