a-a a-b aaa aab aad aah aak aao aar ab- aba abb abd abh abk abo abr ad- ada adb add adh adk ado adr aha ahb ahd ahh ahk aho ahr aka akb akd akh akk ako akr aoa aob aod aoh aok aoo aor ar- ara arb ard arh ark aro arr baa bab bad bah bak bao bar bba bbb bbd bbh bbk bbo bbr bda bdb bdd bdh bdk bdo bdr bha bhb bhd bhh bhk bho bhr bka bkb bkk bko bkr boa bob bod boh bok boo bor bra brb brd brh brk bro brr daa dab dad dah dak dao dar dba dbb dbd dbh dbk dbo dbr dda ddb ddd ddh ddk ddo ddr dh- dha dhb dhd dhh dhk dho dhr dka dkb dkk dko dkr doa dob dod doh dok doo dor dra drb drd drk dro drr haa hab had hah hak hao har hba hbb hbd hbh hbk hbo hbr hda hdb hdd hdh hdk hdo hdr hha hhb hhd hhh hhk hho hhr hka hkb hkd hkh hkk hko hkr hoa hob hod hoh hok hoo hor hr- hra hrb hrd hrh hrk hro hrr ka- kaa kab kad kah kak kao kar kba kbb kbd kbh kbk kbo kbr kda kdb kdh kdk kdo kdr kha khh khk kho khr kkb kkh kkk kkr koa kob kod koh kok koo kor kra krd krk kro krr oaa oab oad oah oak oao oar ob- oba obb obd obh obk obo obr oda odb odd odh odo odr oha ohd ohh oho ohr oka okb okd okk oko okr oo- ooa oob ood ooh ook ooo oor or- ora orb ord orh ork oro orr ra- raa rab rad rah rak rao rar rba rbb rbd rbh rbk rbo rbr rda rdb rdd rdh rdo rdr rh- rha rhb rhd rhh rho rhr rkb rkk rko roa rob rod roh rok roo ror rra rrb rrd rrh rrk rrr

a-ak a-do a-ha a-ok aaaa aaab aaad aaah aaar aaba aabb aabd aabh aada aaha aahk aaka aaoo aara aard aaro abaa abab abad abak abar abb- abba abbb abbo abbr abda abdo abha abho abhr aboa abob abod aboh abok aboo abor abra abro adaa adab adad adah adak adao adar adba adda addd addo addr adha adhd adho adob adod adok adoo ador adra adro ahab ahad ahah ahar ahha ahoa ahod ahok ahor ahra ahrr akaa akah akao akar akha akka akko akok akr- akra aoah aoba aodh aora aorb arab arad arah arak arar arba arbh arda ardo arh- arka arkh arko aroa arob arod aroo aror arr- arra arrh arrk arro arrr baaa baad baah baak baar baba babb babo babr bada badb badd badh bado badr baha baho bahr bak- baka bakh bako bakr baoh bar- bara barb bard barh bark baro barr bbad bbbb bbdd bbdo bd-r bddh bhao bhar bhor bhra boab boad boak boar boba bobb bobo boda bodb bodh bodo boha bohd boho bohr boka boko boob bood booh book boor bor- bora bord borh bork boro borr brab brad brah brak brao brda brdo brka brkb broa brob brod broh brok broo bror brrr d-bo daab daad daar daba dabb dabo dada dado daha daka dako dara darb dard dark daro darr dbar dddd dhaa dhad dhak dhao dhar dhod dhor dkba doab doak doar doba dobb dod- doda dodd dodo doha dohr doka doko doob dood dook door dora dord dork doro dorr draa drab drad drak drar drba drda drob drod droh drra haab haad haak haar haba habo hada hadh haha haho haka hakk hako haor hara hard harh hark haro harr hbar hdbk hdda hdod hdra hhaa hhhh hoad hoar hoba hobo hoda hodh hodk hodr hoha hoho hoka hoko hood hook hoor hora hord hork horo horr hrad hrob hrod kaaa kaab kaak kaar kaba kabb kabd kabo kabr kad- kada kadd kado kadr kaha kaho kahr kaka kakh kakk kako kaoa kaok kaor kara karb kard kark karo karr kbaa kbab kbad kbak kbar kbba kbbb kbbd kbbk kbbo kbbr kbdb kbdo kbdr kbhb kbhh kbhr kbkb kbkk kbko kbkr kboa kbob kbod kbok kboo kbra kbrb kbrd kbrh kbrk kbro kdaa kdab kdad kdak kdao kdar kdbb kdbr kddb kddd kddk kddr kdka kdkb kdkd kdkk kdko kdkr kdok kdrb kdro khab khad khak khao khar khbd khbr khdk khdr khhk khho khka khkk khkr khoa khob khok khor khra khrd khrk khro khrr kkaa kkar kkba kkbb kkbd kkbo kkbr kkda kkdd kkdo kkha kkhb kkhh kkhk kkhr kkkk kkoa kkob kkoh kkoo kkor kkrb kkrh kkrk kkro kkrr koab koak koar koba kobb kobk kobo kobr koda kodk kodo koha kohd kohh koho kohr koka kokb kokh kokk koko kokr koob kook kooo koor kora korb kord kork koro korr krab krad krah krak krar krba krbb krbd krbk krbr krda krdd krdo krdr krka krkd krkh krkk krko krkr kroa krob krod kroh krok kroo kror krrb krrk krro krrr oara obad obak obba obbo obkb obok obor obra obrh obro odah odbo odda oddd odoh odoo odor odra ohad ohba ohho ohob ohoh ohok ohra okak okha okka okko okok okor okra okro ooaa ooak ooba ooda ooha ooho oooh oooo oora oord orab orad orah orak orao orar orba orbb orbo orda ordo orka orko oro- orok oror orra orro raab raad raak raba rabb rabk rabo rada radd radh rado radr raha rahr raka rakk raob raoh raok rara rarb rark raro rbbb rbbr rboh rhoa rhob rhod rhoh roab road roak roar rob- roba robb robo roda rodd rodo roha rohr roka rokh rokk roko rokr roob rood rook roor rora rork roro rrad rrah rrrr

-aaa- -abad aaaah aabaa aabba aabra aahaa aakko aarah aaroh abaab ababa abada abaka abako abara abbad abbar abbod abhar abhor abkar abkoo aboab aboad abobo abodh aboha abood abook abora abord abrad abrak abrar abrod adaba