a-a a-b a-i a-t aaa aab aaf aag aai aao aar aat ab- aba abb abf abg abi abo abr abt af- afa afb aff afg afi afo afr aft ag- aga agb agf agg agi ago agr agt ai- aia aib aif aig aii aio air ait aoa aob aof aog aoi aoo aor aot ar- ara arb arf arg ari aro arr art at- ata atb atf atg ati ato atr att baa bab baf bag bai bao bar bat bba bbb bbf bbg bbi bbo bbr bbt bfa bfb bff bfg bfi bfo bfr bft bga bgb bgf bgg bgi bgo bgr bgt bi- bia bib bif big bii bio bir bit boa bob bof bog boi boo bor bot bra brb brf brg bri bro brr brt bta btb btf btg bti bto btr btt faa fab faf fag fai fao far fat fba fbb fbf fbg fbi fbo fbr fbt ffa fff ffg ffi ffo ffr fft fga fgb fgf fgg fgi fgr fgt fia fib fif fig fii fir fit foa fob fof fog foi foo for fot fra frb frf frg fri fro frr frt fta ftb ftf ftg fti fto ftr ftt gaa gab gaf gag gai gao gar gat gba gbf gbg gbi gbo gbr gbt gfa gfb gff gfi gfo gfr gft gga ggb ggg ggi ggo ggr ggt gia gib gif gig gii gio gir git goa gob gof gog goi goo gor got gra grb grf grg gri gro grr grt gta gtb gtf gtg gti gto gtr gtt i-f ia- iaa iab iaf iag iai iao iar iat iba ibb ibf ibg ibi ibo ibr ibt ifa ifb iff ifg ifi ifo ifr ift iga igb igf igg igi igo igr igt iia iib iif iii iio iir iit io- ioa iob iof iog ioi ioo ior iot ir- ira irb irf irg iri iro irr irt ita itb itf itg iti ito itt o-i oaa oab oaf oag oai oao oar oat ob- oba obb obf obg obi obo obr obt of- ofa ofb off ofg ofi ofo ofr oft oga ogf ogg ogi ogo ogt oia oib oif oii oio oir oit oo- ooa oob oof oog ooi ooo oor oot or- ora orb orf org ori oro orr ort ot- ota otb otf otg oti oto otr ott ra- raa rab raf rag rai rao rar rat rba rbb rbf rbg rbi rbo rbr rbt rfa rfb rff rfg rfi rfo rfr rft rga rgb rgf rgg rgi rgo rgr rgt ria rib rif rig rii rio rir rit roa rob rof rog roi roo ror rot rra rrb rrf rrg rri rrr rrt rta rtb rtf rtg rti rto rtr rtt taa tab taf tag tai tao tar tat tba tbb tbf tbg tbi tbo tbr tbt tfa tfb tff tfg tfi tfo tfr tft tga tgb tgf tgg tgi tgo tgr tgt tia tib tif tig tii tio tir tit to- toa tob tof tog toi too tor tot tra trb trf trg tri tro trr trt tta ttb ttf ttg tti tto ttr ttt

a-ii aaaa aaab aaaf aaai aaar aaba aabb aabi aabt aafa aafb aaff aafi aaib aaii aaoo aara aari aaro aart aata aatf aatt abaa abab abaf abag abai abar abat abb- abba abbb abbi abbo abbr abbt abff abia abib abig abir abit aboa abob abof aboo abor abot abra abri abro abta afaa afao afar afat affa affi affo afft afgf afia afib afif afig afir afit afoa afog afoo afor afr- afra afri afro afta ag-o agag agai agao agar agat agba agbo agfa agga aggi agia agib agig agii agio agir agit agob agog agoo agot agra agri agro agta agtr aiai aiba aibo aiff aiga aigo aiia aiib aiir aioi aira airi airo airt aita aitf aiti aitr aitt aoba aora aorb aort aotf arab araf arag arai arar arat arba arbi arfa arfb arff arft arga argb argi argo aria arib arif arig arii ario arit aroa arob aroi aroo aror arr- arra arrg arri arro arrr arrt arta arti arto artr at-t ataa atab atai atar atat atfb atgo atia atif atit atob atof atoi ator atot atra atri atro atta atti atto attr ba-i baaa baaf baar baat baba babb babi babo babr baff bafo baft baga bagg bagi bago bagt baia baib baig baio bair bait bar- bara barb barf barg bari baro barr bart bata batf bati bato batt bbbb bbga bbrg bfgf bfta bftt bgia biaf biao biar biat biba bibb bibi bibo bifa biff bifi biga bigb bigg bigo bigt bio- biog bioi biot bira birb birg biri biro birr birt bita bito bitt boab boag boai boar boat boba bobb bobi bobo bofa boff boga bogg bogi bogo bogt boi- boii boit boob boof boog boor boot bor- bora borf borg bori boro borr bort bota botb boti boto bott brab braf brag brai brao brat bria brig brio brit broa brob brog broo bror brot brrr btaa btaf btob btor btrt bttb faaa faba fabi fabo fafa faff fafg fafi fafo fagg fagi fago faio fair fait fara farb farg faro farr fart fata fatf fati fato fatt fbar ffar ffff ffii ffrr fftf fiaa fiaf fiar fiat fiba fifa fiff fifi fifo fift figa figg figo fiii fior fira fita fiti fitt foaf foar foba fobt fofo fogg fogi fogo foia foof foot for- fora forb forg fori foro forr fort fota foti foto fott frab frag frat fria frib frig frio frit frob frog frot frta ftii gaar gaba gabb gabi gabo gabr gabt gafa gafb gaff gafi gaft gaga gagg gagi gago gaia gaig gair gait gara garb garf garg gari garo garr gart gata gati gato gatr gatt gbag gbbo gffa gfoa gfor ggbt ggfg gggg giaa giai giat giba gibb giff gift giga gigg gigi gigo giog gioi gira girg giri giro girr girt gita gito goaf goai