a-a a-b aaa aab aad aak aan aao aar ab- aba abb abd abk abn abo abr ad- ada adb add adk adn ado adr aka akb akd akk akn ako akr an- ana anb and ank ann ano anr aoa aob aod aok aon aoo aor ar- ara arb ard ark arn aro arr baa bab bad bak ban bao bar bba bbb bbd bbk bbn bbo bbr bda bdb bdd bdk bdo bdr bka bkb bkk bkn bko bkr bna bnb bnd bnk bnn bno bnr boa bob bod bok bon boo bor bra brb brd brk brn bro brr daa dab dad dak dan dao dar dba dbb dbd dbk dbn dbo dbr dda ddb ddd ddk ddn ddo ddr dka dkb dkk dko dkr dna dnb dnd dnk dnn dno dnr doa dob dod dok don doo dor dra drb drd drk drn dro drr ka- kaa kab kad kak kan kao kar kba kbb kbd kbk kbn kbo kbr kda kdb kdk kdo kdr kkb kkk kkn kkr kn- kna knd knk knn kno knr koa kob kod kok kon koo kor kra krd krk krn kro krr naa nab nad nak nan nao nar nba nbb nbd nbk nbn nbo nbr nda ndb ndd ndk ndn ndo ndr nka nkk nkn nko nkr nna nnb nnk nnn nno no- noa nob nod nok non noo nor nra nrb nrd nrk nrn nro nrr oaa oab oad oak oan oao oar ob- oba obb obd obk obn obo obr oda odb odd odn odo odr oka okb okd okk oko okr on- ona onb ond onk onn ono onr oo- ooa oob ood ook oon ooo oor or- ora orb ord ork orn oro orr ra- raa rab rad rak ran rao rar rba rbb rbd rbk rbn rbo rbr rda rdb rdd rdn rdo rdr rkb rkk rko rna rnb rnd rnn rno rnr roa rob rod rok ron roo ror rra rrb rrd rrk rrn rrr

-ana a-ak a-do a-ok aaaa aaab aaad aaan aaar aaba aabb aabd aada aaka aana aand aaon aaoo aara aard aaro abaa abab abad abak aban abar abb- abba abbb abbo abbr abda abdo aboa abob abod abok abon aboo abor abra abro adaa adab adad adak adan adao adar adba adda addd addn addo addr adna adob adod adok adon adoo ador adra adro akaa akan akao akar akdn akka akko akna akok akon akr- akra ana- anaa anab anad anak anan anao anar anba anbb anbo and- anda ando andr ank- anka anko anna annb anno ano- anoa anod anon anor aoba aonb aono aora aorb aorn arab arad arak aran arar arba arda ardo arka arko arna arnd arnk arno aroa arob arod aron aroo aror arr- arra arrk arro arrr baaa baad baak baan baar baba babb babo babr bada badb badd bado badr bak- baka bako bakr bana band bank bann bano banr baon bar- bara barb bard bark barn baro barr bbad bbbb bbdd bbdo bd-r bdna bnor bnrr boab boad boak boan boar boba bobb bobo boda bodb bodo boka bokn boko bona bond bonk bonn bono boob bood book boon boor bor- bora bord bork born boro borr brab brad brak bran brao brda brdo brka brkb brna brno broa brob brod brok bron broo bror brrr d-bo d-na daab daad daan daar daba dabb dabo dada dado daka dako dana dand dank dann dano danr daon dara darb dard dark darn daro darr dbar dbrn dddd dkba dnaa dnab dnad dnan doab doak doan doar doba dobb dod- doda dodd dodo doka doko dona dond donk donn dono donr doob dood dook doon door dora dord dork dorn doro dorr draa drab drad drak drar drba drda drna drno drob drod dron drra kaaa kaab kaak kaan kaar kaba kabb kabd kabo kabr kad- kada kadd kado kadr kaka kakk kakn kako kana kanb kand kann kano kaoa kaok kaon kaor kara karb kard kark karn karo karr kbaa kbab kbad kbak kbar kbba kbbb kbbd kbbk kbbo kbbr kbdb kbdn kbdo kbdr kbkb kbkk kbko kbkr kbna kbnd kbnn kbno kbnr kboa kbob kbod kbok kbon kboo kbra kbrb kbrd kbrk kbrn kbro kdaa kdab kdad kdak kdao kdar kdbb kdbn kdbr kddb kddd kddk kddr kdka kdkb kdkd kdkk kdkn kdko kdkr kdna kdnd kdnk kdnn kdno kdnr kdok kdrb kdro kkaa kkan kkar kkba kkbb kkbd kkbn kkbo kkbr kkda kkdd kkdo kkkk kknb kknd kknn kkno kkoa kkob kkon kkoo kkor kkrb kkrk kkrn kkro kkrr knaa knab knan knar knba knbb knbn knbr knda kndb kndd kndk kndn kndo kndr knkk knnb knnd knnk knnr knob knod knok knon knor knrb knrk knro koab koak koan koar koba kobb kobk kobn kobo kobr koda kodk kodo koka kokb kokk kokn koko kokr kona kond konk kono koob kook koon kooo koor kora korb kord kork korn koro korr krab krad krak kran krar krba krbb krbd krbk krbr krda krdd krdo krdr krka krkd krkk krkn krko krkr krna krnb krnd krnk krnn krno kroa krob krod krok kroo kror krrb krrk krrn krro krrr naaa naab naad naan naar naba nabk nabo nada nadk nadr naka nako nan- nana nanb nand nann nano naor nara nard nark narn naro narr nbaa nbad nbak nbar nbbo ndaa ndak ndao nddb nddo ndna ndor nkok nkor nndb nnnn noaa noak noba nobo noda nodo noko non- nona nonn nono noo- noob nook noon nooo noor nor- nora norb nord nork norn noro norr nrab nrna nron nrrd oara obad obak oban obba obbo obkb obok obon obor obra obro odbo odda oddd odnb odon odoo odor odra okak okan okka okko okna okno okok okon okor okra okro onab onan onar onda ondo onna onno onod onon onor onra ooaa ooak ooba ooda oona oooo oora oord orab orad orak oran orao orar orba orbb orbo orda ordn ordo orka orko orna orno oro-