a-a a-b a-t aaa aab aag aak aao aar aas aat aav ab- aba abb abg abk abo abr abs abt abv ag- aga agb agg agk ago agr ags agt agv aka akb akg akk ako akr aks akv aoa aob aog aok aoo aor aos aot aov ar- ara arb arg ark aro arr ars art arv as- asa asb asg ask aso asr ass ast asv at- ata atb atg ato atr ats att atv av- ava avb avg avk avo avr avs avt baa bab bag bak bao bar bas bat bav bba bbb bbg bbk bbo bbr bbs bbt bga bgb bgg bgk bgo bgr bgs bgt bgv bka bkb bkg bkk bko bkr bks bkt bkv boa bob bog bok boo bor bos bot bov bra brb brg brk bro brr brs brt brv bsa bsb bsg bsk bso bsr bss bst bsv bta btb btg btk bto btr bts btt btv bva bvb bvg bvk bvo bvr bvs bvt bvv gaa gab gag gak gao gar gas gat gav gba gbg gbk gbo gbr gbs gbt gbv gga ggb ggg ggo ggr ggs ggt ggv gka gkb gko gks gkt goa gob gog gok goo gor gos got gov gra grb grg grk gro grr grs grt grv gsa gsb gsg gsk gso gsr gss gst gsv gta gtb gtg gtk gto gtr gts gtt gtv gva gvb gvg gvk gvo gvr gvs gvt k-t ka- kaa kab kag kak kao kar kas kat kav kba kbb kbk kbo kbr kbs kga kgb kgo kgs kgv kkb kkk kkr kks kkt kkv koa kob kog kok koo kor kos kot kra krg krk kro krr krs krt krv ksa ksb ksg ksk kso ksr kss kst ksv kta ktb ktg ktk kto ktr kts ktt ktv kva kvb kvk kvo kvr kvs kvv oaa oab oag oak oao oar oas oat oav ob- oba obb obg obk obo obr obs obt obv oga ogg ogo ogs ogt oka okb okg okk oko okr oks oo- ooa oob oog ook ooo oor oos oot oov or- ora orb org ork oro orr ors ort orv os- osa osb osg osk oso osr oss ost osv ot- ota otb otg otk oto otr ots ott otv ov- ova ovb ovo ovs ovv ra- raa rab rag rak rao rar ras rat rav rba rbb rbg rbk rbo rbr rbs rbt rga rgb rgg rgk rgo rgr rgs rgt rgv rkb rkg rkk rko rks rkt rkv roa rob rog rok roo ror ros rot rov rra rrb rrg rrk rrr rrs rrt rsa rsb rsg rsk rso rsr rss rst rsv rta rtb rtg rtk rto rtr rts rtt rtv rva rvb rvg rvo rvr rvs rvt rvv saa sab sag sak sao sar sas sat sav sba sbb sbg sbk sbo sbr sbs sbt sbv sga sgb sgg sgk sgo sgr sgs sgt sgv sk- ska skb skg skk sko skr sks skt soa sob sog sok soo sor sos sot sov sr- sra srb srg srk sro srr srs srt srv ss- ssa ssb ssg ssk sso ssr sss sst ssv sta stb stg stk sto str sts stt stv sva svb svg svk svo svr svs svt svv taa tab tag tak tao tar tas tat tav tba tbb tbg tbk tbo tbr tbs tbt tbv tga tgb tgg tgk tgo tgr tgs tgt tgv tka tkb tkg tkk tko tkr tks tkt to- toa tob tog tok too tor tos tot tov tra trb trg trk tro trr trs trt trv tsa tsb tsg tsk tso tsr tss tst tsv tta ttb ttg ttk tto ttr tts ttt ttv tva tvb tvg tvk tvo tvr tvs tvt v-a vaa vab vag vak vao var vas vat vav vba vbg vbk vbo vbr vbs vbv vga vgg vgo vgr vgs vgt vka vkb vkg vkt voa vob vog vok voo vor vos vot vov vra vrb vrg vrk vrr vrs vrt vsa vsb vsg vsk vso vsr vss vst vsv vta vtb vtg vtk vto vtr vts vtt vtv vva vvb vvg vvo vvr vvs vvt vvv

a-ak a-ok aaaa aaab aaar aaas aaav aaba aabb aabt aaka aaoo aara aaro aars aart aasa aass aast aata aatk aatt aava abaa abab abag abak abar abas abat abb- abba abbb abbo abbr abbs abbt aboa abob abok aboo abor abos abot abov abra abro abrs abs- absa abss abta abts abva ag-o agag agao agar agas agat agav agba agbo agga agob agog agoo agos agot agra agro agsa agsg agst agta agtr agts agva akaa akao akar akas akka akko akok akos akot akr- akra aksa akst aktv aoba aoks aora aorb aors aort aoss arab arag arak arar aras arat arba arbs arga argb argo args arka arko arks aroa arob aroo aror aros arr- arra arrg arrk arro arrr arrs arrt ars- arsa arsk arso arst arta arto artr arts artv arva arvo asaa asab asag asak asao asar asas asat asba asbo asgt aska asko askr asks askt asob asog asok asor asos asot asra asrg asro asrs assa assk asso assr asss asst asta astb asto astr asts astv asva asvs at-t ataa atab atak atar atas atat atbs atgo atka atkt atkv atob atok ator atos atot atra atrk atro atsb atst atta atto attr atts atvs avab avao avar avas avat avgo avgs avkt avor avos avot avra avro avst avva avvo baaa baak baar baas baat baba babb babo babr babs baga bagg bago bags bagt bak- baka bako bakr baks bakt baos bar- bara barb barg bark baro barr bars bart basa bask baso bass bast bata bato bats batt bava bbas bbbb bbbs bbga bbrg bggs bgst boab boag boak boar boas boat boba bobb bobo bobs boga bogg bogo bogs bogt boka boko boks boob boog book boor boos boot bor- bora borg bork boro borr bors bort bosa bosk boso