-al -er -ol a-a a-b aaa aab aae aaf aag aak aal aam aao aar ab- aba abb abe abf abg abk abl abm abo abr aea aeb aee aef aeg aek ael aem aeo aer af- afa afb afe aff afg afk afl afm afo afr ag- aga agb age agf agg agk agl agm ago agr aka akb ake akg akk akl akm ako akr al- ala alb ale alf alg alk all alm alo alr ama amb ame amf amg amk aml amm amo amr aoa aob aoe aof aog aok aol aom aoo aor ar- ara arb are arf arg ark arl arm aro arr baa bab bae baf bag bak bal bam bao bar bba bbb bbe bbf bbg bbk bbl bbm bbo bbr be- bea beb bee bef beg bek bel bem beo ber bfa bfb bfe bff bfg bfl bfm bfo bfr bga bgb bge bgf bgg bgk bgl bgm bgo bgr bka bkb bke bkf bkg bkk bkl bkm bko bkr bla blb ble blf blg blk bll blm blo blr bma bmb bme bmf bmg bmk bml bmm bmo bmr boa bob boe bof bog bok bol bom boo bor bra brb bre brf brg brk brl brm bro brr eaa eab eae eaf eag eak eal eam eao ear eba ebb ebe ebf ebg ebk ebl ebm ebo ebr eea eeb eee eef eeg eek eel eem eeo eer ef- efa efb efe eff efg efl efm efo efr ega egb ege egf egg egl egm ego egr eka ekb eke ekf ekg ekl eko ekr ela elb ele elf elg elk ell elm elo elr em- ema emb eme emf emg emk eml emm emo emr eo- eoa eob eoe eof eog eok eol eom eoo eor era erb ere erf erg erk erl erm ero err faa fab fae faf fag fak fal fam fao far fba fbb fbe fbf fbg fbk fbl fbm fbo fbr fea feb fee fef feg fek fel fem feo fer ffa ffe fff ffg ffk ffl ffm ffo ffr fga fgb fge fgf fgg fgl fgm fgr fka fkb fkf fkg fkk fkl fkm fla flb fle flf flg fll flm flo flr fma fmb fme fmf fmg fml fmm fmo fmr foa fob foe fof fog fok fol fom foo for fra frb fre frf frg frk frl frm fro frr gaa gab gae gaf gag gak gal gam gao gar gba gbe gbf gbg gbk gbl gbm gbo gbr ge- gea geb gee gef geg gek gel gem geo ger gfa gfb gfe gff gfk gfl gfm gfo gfr gga ggb ggg ggm ggo ggr gka gkb gkm gko gla glb gle glf glg glk gll glm glo glr gma gmb gme gmf gmg gml gmm gmo gmr goa gob goe gof gog gok gol gom goo gor gra grb gre grf grg grk grl grm gro grr ka- kaa kab kae kaf kag kak kal kam kao kar kba kbb kbe kbf kbk kbl kbm kbo kbr ke- kea keb kee kef keg kek kel kem keo ker kfa kff kfg kfm kfo kga kgb kgf kgl kgm kgo kkb kke kkk kkl kkm kkr kl- kla klb klf klg klm klo klr kma kmb kme kmf kmg kmk kml kmm kmo koa kob koe kof kog kok kol kom koo kor kra krf krg krk krl kro krr la- laa lab lae laf lag lak lal lam lao lar lba lbb lbe lbf lbg lbk lbl lbm lbo lbr lea leb lee lef leg lek lel lem leo ler lfa lfb lfe lff lfg lfk lfl lfm lfo lfr lga lgb lge lgf lgg lgk lgl lgm lgo lgr lka lkb lkg lkl lkr lla llb lle llf llg llk lll llm llo llr lma lmb lme lmf lmg lmk lml lmm lmo lmr loa lob loe lof log lok lol lom loo lor lra lrb lrf lrg lrk lrm lro lrr m-f m-o m-r maa mab mae maf mag mak mal mam mao mar mba mbb mbe mbf mbg mbk mbl mbm mbo mbr mea meb mee mef meg mek mel mem meo mer mfa mfb mfe mff mfg mfl mfm mfo mfr mga mgb mge mgf mgk mgl mgm mgo mgr mka mkb mke mkg mkk mkl mkm mko mkr mla mlb mle mlf mlg mlk mll mlm mlo mlr mma mmb mme mmf mmg mmk mml mmm mmo mmr moa mob moe mof mog mok mol mom moo mor mra mrb mre mrf mrg mrk mrl mrm mro mrr oaa oab oae oaf oag oak oal oam oao oar ob- oba obb obe obf obg obk obl obm obo obr oea oeb oee oef oeg oel oem oeo oer of- ofa ofb ofe off ofg ofl ofm ofo ofr oga oge ogf ogg ogl ogo oka okb oke okg okk okl oko okr ola olb ole olf olg olk oll olm olo om- oma omb ome omf omg oml omm omo omr oo- ooa oob oof oog ook ool oom ooo oor or- ora orb ore orf org ork orl orm oro orr ra- raa rab rae raf rag rak ral ram rao rar rba rbb rbe rbf rbg rbk rbl rbm rbo rbr re- rea reb ree ref reg rek rel rem reo rer rfa rfb rfe rff rfg rfk rfl rfm rfo rfr rga rgb rge rgf rgg rgk rgo rgr rkb rke rkf rkg rkk rkm rko rla rle rlf rlg rll rlm rlo rlr rma rmb rme rmf rmg rml rmm rmo rmr roa rob roe rof rog rok rol rom roo ror rra rrb rrf rrg rrk rrl rrm rrr

a-ak a-be a-ok aaaa aaab aaae aaaf aaal aaam aaar aaba aabb aabl aabm aaea aaem aafa aafb aaff aafl aage aaka aake aala aale aall aalo aama aamb aame aamo aamr aaoe aaoo aara aare aarm aaro abaa abab abae abaf abag abak abal abam abar abb- abba abbb