-al -er -ol a-a a-b a-t aaa aab aae aaf aag aal aao aar aat ab- aba abb abe abf abg abl abo abr abt aea aeb aee aef aeg ael aeo aer aet af- afa afb afe aff afg afl afo afr aft ag- aga agb age agf agg agl ago agr agt al- ala alb ale alf alg all alo alr alt aoa aob aoe aof aog aol aoo aor aot ar- ara arb are arf arg arl aro arr art at- ata atb ate atf atg atl ato atr att baa bab bae baf bag bal bao bar bat bba bbb bbe bbf bbg bbl bbo bbr bbt be- bea beb bee bef beg bel beo ber bet bfa bfb bfe bff bfg bfl bfo bfr bft bga bgb bge bgf bgg bgl bgo bgr bgt bla blb ble blf blg bll blo blr blt boa bob boe bof bog bol boo bor bot bra brb bre brf brg brl bro brr brt bta btb bte btf btg btl bto btr btt eaa eab eae eaf eag eal eao ear eat eba ebb ebe ebf ebg ebl ebo ebr ebt eea eeb eee eef eeg eel eeo eer eet ef- efa efb efe eff efg efl efo efr eft ega egb ege egf egg egl ego egr egt ela elb ele elf elg ell elo elr elt eo- eoa eob eoe eof eog eol eoo eor eot era erb ere erf erg erl ero err ert eta etb ete etf etg etl eto etr ett faa fab fae faf fag fal fao far fat fba fbb fbe fbf fbg fbl fbo fbr fbt fea feb fee fef feg fel feo fer fet ffa ffe fff ffg ffl ffo ffr fft fga fgb fge fgf fgg fgl fgr fgt fla flb fle flf flg fll flo flr flt foa fob foe fof fog fol foo for fot fra frb fre frf frg frl fro frr frt fta ftb fte ftf ftg ftl fto ftr ftt gaa gab gae gaf gag gal gao gar gat gba gbe gbf gbg gbl gbo gbr gbt ge- gea geb gee gef geg gel geo ger get gfa gfb gfe gff gfl gfo gfr gft gga ggb ggg ggo ggr ggt gla glb gle glf glg gll glo glr glt goa gob goe gof gog gol goo gor got gra grb gre grf grg grl gro grr grt gta gtb gte gtf gtg gtl gto gtr gtt la- laa lab lae laf lag lal lao lar lat lba lbb lbe lbf lbg lbl lbo lbr lbt lea leb lee lef leg lel leo ler let lfa lfb lfe lff lfg lfl lfo lfr lft lga lgb lge lgf lgg lgl lgo lgr lgt lla llb lle llf llg lll llo llr llt loa lob loe lof log lol loo lor lot lra lrb lrf lrg lro lrr lrt lta ltb lte ltf ltg ltl lto ltr ltt oaa oab oae oaf oag oal oao oar oat ob- oba obb obe obf obg obl obo obr obt oea oeb oee oef oeg oel oeo oer oet of- ofa ofb ofe off ofg ofl ofo ofr oft oga oge ogf ogg ogl ogo ogt ola olb ole olf olg oll olo olt oo- ooa oob oof oog ool ooo oor oot or- ora orb ore orf org orl oro orr ort ot- ota otb ote otf otg otl oto otr ott ra- raa rab rae raf rag ral rao rar rat rba rbb rbe rbf rbg rbl rbo rbr rbt re- rea reb ree ref reg rel reo rer ret rfa rfb rfe rff rfg rfl rfo rfr rft rga rgb rge rgf rgg rgo rgr rgt rla rle rlf rlg rll rlo rlr rlt roa rob roe rof rog rol roo ror rot rra rrb rrf rrg rrl rrr rrt rta rtb rte rtf rtg rtl rto rtr rtt taa tab tae taf tag tal tao tar tat tba tbb tbe tbf tbg tbl tbo tbr tbt te- tea teb tee tef teg tel teo ter tet tfa tfb tfe tff tfg tfl tfo tfr tft tga tgb tge tgf tgg tgl tgo tgr tgt tla tle tlf tlg tll tlo tlr tlt to- toa tob toe tof tog tol too tor tot tra trb tre trf trg trl tro trr trt tta ttb tte ttf ttg ttl tto ttr ttt

a-be aaaa aaab aaae aaaf aaal aaar aaba aabb aabl aabt aaea aafa aafb aaff aafl aage aala aale aall aalo aaoe aaoo aara aare aaro aart aata aatf aatt abaa abab abae abaf abag abal abar abat abb- abba abbb abbe abbo abbr abbt abee abel aber abet abff abgl abla able ablo aboa abob abof abol aboo abor abot abra abro abta aeaf aeer aega aela aer- aera aero aeta aetf aeto aetr aett afaa afao afar afat afee afel afer afet affa affo afft afgf afla afle aflg afoa afoe afog afol afoo afor afr- afra afre afro afta afte ag-o agag agal agao agar agat agba agbo agea agee agel ager aget agfa agga agge agla agle agob agog agol agoo agot agra agre agrl agro agta agte agtr alaa alae alag alal alao alar alat alb- alba albe albo alea alee alef aleg aleo aler alet alfa alfe alg- alga alge algo all- alla alle alll allo allr aloa aloe alof alog alol aloo alor alot alro alta alte alto aoba aola aole aora aorb aort aotf arab arae araf arag aral arar arat arba arbe area aree aref areg arel areo aret arfa arfb arff arft arga argb arge argo arla arle arlo aroa arob aroe aroo aror arr- arra arre arrg arro arrr arrt arta arte arto artr at-l at-t ataa atab atae atal atar atat atea atee atef atel ateo ater atfb atfe atgo atla atle atlo atob atoe atof atol ator atot atra atre atro atta atte atto attr baaa baaf baal baar baat