a-a a-b a-t aaa aab aag aak aao aar aat aav ab- aba abb abg abk abo abr abt abv ag- aga agb agg agk ago agr agt agv aka akb akg akk ako akr akv aoa aob aog aok aoo aor aot aov ar- ara arb arg ark aro arr art arv at- ata atb atg ato atr att atv av- ava avb avg avk avo avr avt baa bab bag bak bao bar bat bav bba bbb bbg bbk bbo bbr bbt bga bgb bgg bgk bgo bgr bgt bgv bka bkb bkg bkk bko bkr bkt bkv boa bob bog bok boo bor bot bov bra brb brg brk bro brr brt brv bta btb btg btk bto btr btt btv bva bvb bvg bvk bvo bvr bvt bvv gaa gab gag gak gao gar gat gav gba gbg gbk gbo gbr gbt gbv gga ggb ggg ggo ggr ggt ggv gka gkb gko gkt goa gob gog gok goo gor got gov gra grb grg grk gro grr grt grv gta gtb gtg gtk gto gtr gtt gtv gva gvb gvg gvk gvo gvr gvt k-t ka- kaa kab kag kak kao kar kat kav kba kbb kbk kbo kbr kga kgb kgo kgv kkb kkk kkr kkt kkv koa kob kog kok koo kor kot kra krg krk kro krr krt krv kta ktb ktg ktk kto ktr ktt ktv kva kvb kvk kvo kvr kvv oaa oab oag oak oao oar oat oav ob- oba obb obg obk obo obr obt obv oga ogg ogo ogt oka okb okg okk oko okr oo- ooa oob oog ook ooo oor oot oov or- ora orb org ork oro orr ort orv ot- ota otb otg otk oto otr ott otv ov- ova ovb ovo ovv ra- raa rab rag rak rao rar rat rav rba rbb rbg rbk rbo rbr rbt rga rgb rgg rgk rgo rgr rgt rgv rkb rkg rkk rko rkt rkv roa rob rog rok roo ror rot rov rra rrb rrg rrk rrr rrt rta rtb rtg rtk rto rtr rtt rtv rva rvb rvg rvo rvr rvt rvv taa tab tag tak tao tar tat tav tba tbb tbg tbk tbo tbr tbt tbv tga tgb tgg tgk tgo tgr tgt tgv tka tkb tkg tkk tko tkr tkt to- toa tob tog tok too tor tot tov tra trb trg trk tro trr trt trv tta ttb ttg ttk tto ttr ttt ttv tva tvb tvg tvk tvo tvr tvt v-a vaa vab vag vak vao var vat vav vba vbg vbk vbo vbr vbv vga vgg vgo vgr vgt vka vkb vkg vkt voa vob vog vok voo vor vot vov vra vrb vrg vrk vrr vrt vta vtb vtg vtk vto vtr vtt vtv vva vvb vvg vvo vvr vvt vvv

a-ak a-ok aaaa aaab aaar aaav aaba aabb aabt aaka aaoo aara aaro aart aata aatk aatt aava abaa abab abag abak abar abat abb- abba abbb abbo abbr abbt aboa abob abok aboo abor abot abov abra abro abta abva ag-o agag agao agar agat agav agba agbo agga agob agog agoo agot agra agro agta agtr agva akaa akao akar akka akko akok akot akr- akra aktv aoba aora aorb aort arab arag arak arar arat arba arga argb argo arka arko aroa arob aroo aror arr- arra arrg arrk arro arrr arrt arta arto artr artv arva arvo at-t ataa atab atak atar atat atgo atka atkt atkv atob atok ator atot atra atrk atro atta atto attr avab avao avar avat avgo avkt avor avot avra avro avva avvo baaa baak baar baat baba babb babo babr baga bagg bago bagt bak- baka bako bakr bakt bar- bara barb barg bark baro barr bart bata bato batt bava bbbb bbga bbrg boab boag boak boar boat boba bobb bobo boga bogg bogo bogt boka boko boob boog book boor boot bor- bora borg bork boro borr bort bota botb boto bott bova bovo brab brag brak brao brat brav brka brkb broa brob brog brok broo bror brot brrr btaa btob btor btrt bttb gaar gaba gabb gabo gabr gabt gaga gagg gago gara garb garg garo garr gart garv gata gato gatr gatt gatv gava gbag gbbo ggbt gggg goar goat goba gobo goga gogo goog gook goor goot gora gorb gorg goro gorr gort gota goto gott gotv govt grab grat grav grbr grob grog grok groo gror grot grov grrr gtaa gtbr gtta gvat gvtv gvvv kaaa kaab kaag kaak kaar kaat kaba kabb kabg kabo kabr kag- kaga kagb kagg kago kagr kagt kagv kaka kakk kako kakt kaoa kaog kaok kaor kara karb karg kark karo karr kart karv kat- kata katb katg katk kato katr katt katv kava kavb kavo kavv kbaa kbab kbak kbar kbat kbba kbbb kbbg kbbk kbbo kbbr kbbt kbga kbgb kbgg kbgo kbgr kbgt kbkb kbkg kbkk kbko kbkr kbkv kboa kbob kbok kboo kbot kbov kbra kbrb kbrg kbrk kbro kbrt kbrv kbta kbtb kbtk kbto kbtr kbtt kbtv kbva kbvb kbvo kbvr kgab kgak kgba kgbb kgbr kgbt kgga kggg kggo kggr kgor kgot kgra kgrb kgrg kgrk kgro kgrr kgrt kgrv kgtk kgto kgtv kgva kgvo kkaa kkag kkar kkat kkba kkbb kkbg kkbo kkbr kkbt kkgb kkgo kkgr kkkk kkoa kkob kkoo kkor kkot kkov kkrb kkrk kkro kkrr kkrt kkrv kktk kktv kkvr kkvt kkvv koab koak koar koba kobb kobk kobo kobr koga kogb kogg kogo kogt koka kokb kokk koko kokr koob koog kook kooo koor koot koov kora korb korg kork koro korr kort korv kota kotb kotk koto kotr kott kotv kova kovk kovo kovr krab krag krak krar krat krav krba krbb krbg krbk krbr krbt krgt krka krkk krko krkr krkv kroa krob krog krok kroo kror krov krrb krrg krrk krro krrr krrt krta krtk krto krtr krtv krva krvb krvg krvk krvo krvr krvv ktaa ktag ktak