a-a a-b a-i a-t aaa aab aag aai aao aar aas aat ab- aba abb abg abi abo abr abs abt ag- aga agb agg agi ago agr ags agt ai- aia aib aig aii aio air ais ait aoa aob aog aoi aoo aor aos aot ar- ara arb arg ari aro arr ars art as- asa asb asg asi aso asr ass ast at- ata atb atg ati ato atr ats att baa bab bag bai bao bar bas bat bba bbb bbg bbi bbo bbr bbs bbt bga bgb bgg bgi bgo bgr bgs bgt bi- bia bib big bii bio bir bis bit boa bob bog boi boo bor bos bot bra brb brg bri bro brr brs brt bsa bsb bsg bsi bso bsr bss bst bta btb btg bti bto btr bts btt gaa gab gag gai gao gar gas gat gba gbg gbi gbo gbr gbs gbt gga ggb ggg ggi ggo ggr ggs ggt gia gib gig gii gio gir gis git goa gob gog goi goo gor gos got gra grb grg gri gro grr grs grt gsa gsb gsg gsi gso gsr gss gst gta gtb gtg gti gto gtr gts gtt ia- iaa iab iag iai iao iar ias iat iba ibb ibg ibi ibo ibr ibs ibt iga igb igg igi igo igr igs igt iia iib iii iio iir iis iit io- ioa iob iog ioi ioo ior ios iot ir- ira irb irg iri iro irr irs irt is- isa isb isg isi iso isr iss ist ita itb itg iti ito its itt o-i oaa oab oag oai oao oar oas oat ob- oba obb obg obi obo obr obs obt oga ogg ogi ogo ogs ogt oia oib oii oio oir ois oit oo- ooa oob oog ooi ooo oor oos oot or- ora orb org ori oro orr ors ort os- osa osb osg osi oso osr oss ost ot- ota otb otg oti oto otr ots ott ra- raa rab rag rai rao rar ras rat rba rbb rbg rbi rbo rbr rbs rbt rga rgb rgg rgi rgo rgr rgs rgt ria rib rig rii rio rir ris rit roa rob rog roi roo ror ros rot rra rrb rrg rri rrr rrs rrt rsa rsb rsg rsi rso rsr rss rst rta rtb rtg rti rto rtr rts rtt saa sab sag sai sao sar sas sat sba sbb sbg sbi sbo sbr sbs sbt sga sgb sgg sgi sgo sgr sgs sgt sia sib sig sii sio sir sis sit soa sob sog soi soo sor sos sot sr- sra srb srg sri sro srr srs srt ss- ssa ssb ssg ssi sso ssr sss sst sta stb stg sti sto str sts stt taa tab tag tai tao tar tas tat tba tbb tbg tbi tbo tbr tbs tbt tga tgb tgg tgi tgo tgr tgs tgt tia tib tig tii tio tir tis tit to- toa tob tog toi too tor tos tot tra trb trg tri tro trr trs trt tsa tsb tsg tsi tso tsr tss tst tta ttb ttg tti tto ttr tts ttt

a-ii aaaa aaab aaai aaar aaas aaba aabb aabi aabt aaib aaii aais aaoo aara aari aaro aars aart aasa aasi aass aast aata aatt abaa abab abag abai abar abas abat abb- abba abbb abbi abbo abbr abbs abbt abia abib abig abir abis abit aboa abob aboo abor abos abot abra abri abro abrs abs- absa absi abss abta abts ag-o agag agai agao agar agas agat agba agbo agga aggi agia agib agig agii agio agir agis agit agob agog agoo agos agot agra agri agro agsa agsg agst agta agtr agts aiai aias aiba aibo aiga aigo aiia aiib aiir aioi aira airi airo airs airt aisa aisb aisg aisi aiso aisr aist aita aiti aitr aits aitt aoba aora aorb aors aort aoss arab arag arai arar aras arat arba arbi arbs arga argb argi argo args aria arib arig arii ario aris arit aroa arob aroi aroo aror aros arr- arra arrg arri arro arrr arrs arrt ars- arsa arsi arso arst arta arti arto artr arts asaa asab asag asai asao asar asas asat asba asbo asgt asia asii asio asir asis asit asob asog asoi asor asos asot asra asrg asro asrs assa assi asso assr asss asst asta astb asti asto astr asts at-t ataa atab atai atar atas atat atbs atgo atia atis atit atob atoi ator atos atot atra atri atro atsb atsi atst atta atti atto attr atts ba-i baaa baar baas baat baba babb babi babo babr babs baga bagg bagi bago bags bagt baia baib baig baio bair bais bait baos bar- bara barb barg bari baro barr bars bart basa basi baso bass bast bata bati bato bats batt bbas bbbb bbbs bbga bbrg bggs bgia bgst biao biar bias biat biba bibb bibi bibo bibs biga bigb bigg bigo bigs bigt biis bio- biog bioi bios biot bira birb birg biri biro birr birs birt bis- bisa biso biss bist bita bito bits bitt boab boag boai boar boas boat boba bobb bobi bobo bobs boga bogg bogi bogo bogs bogt boi- boii bois boit boob boog boor boos boot bor- bora borg bori boro borr bors bort bosa bosi boso boss bost bota botb boti boto bots bott brab brag brai brao bras brat bria brig brio bris brit broa brob brog broo bror bros brot brrr brrs brsb brsr brst bsaa bsas bsat bsgs bsos bsra bsts btaa btob btor btrt btss bttb gaar gaas gaba gabb gabi gabo gabr gabs gabt gaga gagg gagi gago gags gaia gaig gair gais gait gaos gara garb garg gari garo garr gars gart gasa gasb gasi gaso gasr gass gast gata gati gato gatr gats gatt gbag gbas gbbo gbbs ggbt gggg ggss giaa giai gias giat giba gibb gibs giga gigg gigi gigo