-al -ol a-a a-b a-i aaa aab aaf aag aai aal aao aar ab- aba abb abf abg abi abl abo abr af- afa afb aff afg afi afl afo afr ag- aga agb agf agg agi agl ago agr ai- aia aib aif aig aii ail aio air al- ala alb alf alg ali all alo alr aoa aob aof aog aoi aol aoo aor ar- ara arb arf arg ari arl aro arr baa bab baf bag bai bal bao bar bba bbb bbf bbg bbi bbl bbo bbr bfa bfb bff bfg bfi bfl bfo bfr bga bgb bgf bgg bgi bgl bgo bgr bi- bia bib bif big bii bil bio bir bla blb blf blg bli bll blo blr boa bob bof bog boi bol boo bor bra brb brf brg bri brl bro brr faa fab faf fag fai fal fao far fba fbb fbf fbg fbi fbl fbo fbr ffa fff ffg ffi ffl ffo ffr fga fgb fgf fgg fgi fgl fgr fia fib fif fig fii fil fir fla flb flf flg fli fll flo flr foa fob fof fog foi fol foo for fra frb frf frg fri frl fro frr gaa gab gaf gag gai gal gao gar gba gbf gbg gbi gbl gbo gbr gfa gfb gff gfi gfl gfo gfr gga ggb ggg ggi ggo ggr gia gib gif gig gii gil gio gir gla glb glf glg gli gll glo glr goa gob gof gog goi gol goo gor gra grb grf grg gri grl gro grr i-f ia- iaa iab iaf iag iai ial iao iar iba ibb ibf ibg ibi ibl ibo ibr ifa ifb iff ifg ifi ifl ifo ifr iga igb igf igg igi igl igo igr iia iib iif iii iil iio iir il- ila ilb ilf ilg ili ill ilo ilr io- ioa iob iof iog ioi iol ioo ior ir- ira irb irf irg iri irl iro irr la- laa lab laf lag lai lal lao lar lba lbb lbf lbg lbi lbl lbo lbr lfa lfb lff lfg lfi lfl lfo lfr lga lgb lgf lgg lgi lgl lgo lgr lia lib lif lig lii lil lio lir lla llb llf llg lli lll llo llr loa lob lof log loi lol loo lor lra lrb lrf lrg lri lro lrr o-i oaa oab oaf oag oai oal oao oar ob- oba obb obf obg obi obl obo obr of- ofa ofb off ofg ofi ofl ofo ofr oga ogf ogg ogi ogl ogo oia oib oif oii oil oio oir ola olb olf olg oli oll olo oo- ooa oob oof oog ooi ool ooo oor or- ora orb orf org ori orl oro orr ra- raa rab raf rag rai ral rao rar rba rbb rbf rbg rbi rbl rbo rbr rfa rfb rff rfg rfi rfl rfo rfr rga rgb rgf rgg rgi rgo rgr ria rib rif rig rii ril rio rir rla rlf rlg rli rll rlo rlr roa rob rof rog roi rol roo ror rra rrb rrf rrg rri rrl rrr

a-ii aaaa aaab aaaf aaai aaal aaar aaba aabb aabi aabl aafa aafb aaff aafi aafl aaib aaii aala aali aall aalo aaoo aara aari aaro abaa abab abaf abag abai abal abar abb- abba abbb abbi abbo abbr abff abgl abia abib abig abil abir abla ablo aboa abob abof abol aboo abor abra abri abro afaa afao afar affa affi affo afgf afia afib afif afig afil afir afla aflg afoa afog afol afoo afor afr- afra afri afro ag-o agag agai agal agao agar agba agbo agfa agga aggi agia agib agig agii agil agio agir agla agli agob agog agol agoo agra agri agrl agro aiai aiba aibl aibo aiff aifl aiga aigo aiia aiib aiir aila aili aioi aira airi airo alaa alag alai alal alao alar alb- alba albi albo alfa alfi alg- alga algi algo ali- alia alib alif alig alii alil alio alir all- alla alli alll allo allr aloa alof alog aloi alol aloo alor alro aoba aola aora aorb arab araf arag arai aral arar arba arbi arfa arfb arff arga argb argi argo aria arib arif arig arii aril ario arla arli arlo aroa arob aroi aroo aror arr- arra arrg arri arro arrr ba-i baaa baaf baal baar baba babb babi babo babr baff bafo baga bagg bagi bago baia baib baig bail baio bair bala balf bali ball balo baol bar- bara barb barf barg bari baro barr bbbb bbga bblb bbrg bffl bfgf bgia biaf bial biao biar biba bibb bibi bibl bibo bifa biff bifi biga bigb bigg bigo bila bili bill bilo bio- biog bioi biol bira birb birg biri birl biro birr blaa blab blag blio blir blob blog bloo blrg boab boag boai boal boar boba bobb bobi bobo bofa boff boga bogg bogi bogo boi- boii boil bola bolg boli boll bolo boob boof boog bool boor bor- bora borf borg bori boro borr brab braf brag brai brao bria brig bril brio broa brob brog brol broo bror brrr faaa faba fabi fabo fafa faff fafg fafi fafo fagg fagi fago fail faio fair fala fali fall falo fara farb farg farl faro farr fbar fbla ffar ffff ffii ffrr fiaa fiaf fial fiar fiba fifa fiff fifi fifo figa figg figl figo fiii fiil fila fili fill filo fior fira flab flag flao flia flig flii flob flog floo flor foaf foal foar foba fofo fogg fogi fogl fogo foia foil fola foli foll folo folr foof fool for- fora forb forg fori forl foro forr frab frag fria frib frig fril frio frla frob frog frol gaal gaar gaba gabb gabi gabl gabo gabr gafa gafb gaff gafi gaga gagg gagi gago gaia gaig gail gair gala gali gall galo gaol gara garb garf garg gari garo garr gbag gbbo gffa gfoa gfor ggfg gggg giaa giai gial