a-a a-b a-c aaa aab aac aah aan aar aau ab- aba abb abc abh abn abr abu ac- aca acb acc ach acn acr acu aha ahb ahc ahh ahn ahr ahu an- ana anb anc anh ann anr anu ar- ara arb arc arh arn arr aru au- aua aub auc auh aun aur b-u baa bab bac bah ban bar bau bba bbb bbc bbh bbn bbr bbu bca bcb bcc bch bcn bcr bcu bha bhb bhc bhh bhr bhu bna bnb bnc bnn bnr bnu bra brb brh brn brr bru bua bub buc buh bun bur buu c-- caa cab cac cah can car cau cba cbb cbc cbh cbn cbr cbu cca ccb ccc cch ccn ccr ccu ch- cha chb chc chh chn chr chu cn- cna cnb cnc cnh cnn cnr cnu cra crb crc crh crn crr cru cua cub cuc cuh cun cur cuu haa hab hac hah han har hau hba hbb hbc hbh hbn hbr hbu hca hcb hcc hch hcn hcr hha hhb hhc hhh hhn hhr hhu hna hnb hnc hnh hnn hnu hr- hra hrb hrc hrh hrn hrr hru hua hub huc huh hun hur huu naa nab nac nah nan nar nau nba nbb nbc nbn nbr nbu nca ncb ncc nch ncn ncr ncu nha nhb nhc nhh nhn nhr nhu nna nnb nnc nnh nnn nnu nra nrb nrc nrn nrr nru nua nub nuc nuh nun nur nuu ra- raa rab rac rah ran rar rau rba rbb rbc rbh rbn rbr rbu rca rcb rcc rch rcn rcr rcu rh- rha rhb rhc rhh rhn rhr rhu rna rnb rnc rnh rnn rnr rnu rra rrb rrc rrh rrn rrr rru rua rub ruc ruh run rur ruu ua- uaa uab uac uah uan uar uau uba ubb ubc ubh ubn ubr ubu uca ucb ucc uch ucn ucr ucu uha uhb uhc uhh uhr uhu un- una unb unc unh unn unr unu ur- ura urb urc urn urr uru uua uuc uun uur uuu

-ana a-ha a-un aaaa aaab aaac aaah aaan aaar aaba aabb aabc aabh aaca aacb aacc aach aacn aacr aacu aaha aana aara aarc aaru abaa abab abac aban abar abau abb- abba abbb abbr abca abcb abcc abch abcn abcr abha abhr abnu abra abrc abua abun acaa acab acac acan acar acba acca accc acch accu acha achh achr achu acr- acra acrc acrr acu- acur ahab ahac ahah ahar ahau ahha ahra ahrc ahrr ahua ahun ana- anaa anab anac anah anan anar anau anba anbb anbu anca ancc anha anna annb anrc anua anub anun arab arac arah aran arar arau arba arbh arc- arca arch arh- arna arr- arra arrc arrh arrr arru arua arub arun auaa auca auch auna aur- aura baaa baah baan baar baba babb babr babu bac- baca bacc bach bacn baha bahn bahr bahu bana banc banh bann banr banu bar- bara barb barc barh barn barr baru bau- baur bbau bbbb bbch bbrc bcaa bcar bcbc bcca bccc bcnu bcra bcru bcuc bhan bhar bhca bhcc bhra bhur bhuu bnrr brab brac brah bran brau brca brcb brna brrr bruc bruh brun buar buba bubb bubu buca bucc buch bucu buha buhr buna bunb bunn bunu bur- bura burb burh burn burr buru caaa caab caac caah caan caba cabu cac- caca cacc cach cacr caha cahn cana canc canh cann cara carb carc carn carr cauc cbac cbar cbbc cbca cbcc cbcn cbcr cbcu cbha cbna cbrh cbrn ccaa ccab ccac ccar ccba ccbc ccbn ccca cccb cccc cccu ccha cchr ccna ccnb ccnc ccnr ccnu ccra ccrc ccuc chaa chab chac chah chan char chau chca chch chha chnb chnc chnr chra chrb chrc chrn chrr chua chub chun chur cnaa cnac cnbc cnna cnrc cnrr crab crac cran crar crau crbc crbu crca crcc crcr crna crub crun cuan cuau cub- cuba cubb cuca cucc cucn cuna cura curb curn curr haab haan haar haba habu haha hahn hana hanc hann hara harc harh harn harr haru hau- haun hbar hcbc hcca hccb hccc hcch hhaa hhhh hnna hrac hran hrrc hrun huac huah huan huba hubb huch hucu huhn huhu huna hunc hunh hura hurn hurr huru huub naaa naab naac naan naar naba nabc nabu naca nacc nach naha nahr nan- nana nanb nann nanu nara narc narh narn narr naru naur nbaa nbar nbbc nbca nbcc ncaa ncac ncar ncba ncbc ncca nccc nccn nccr nccu ncha nchc ncna ncnc ncra ncrc ncua nhcc nhnn nhra nhrc nnnn nrab nrca nrna nrrc nuan nuba nubc nuca nuch nucu nuha nuna nunc nunn nura nurc nurn nurr nuru raab raan raba rabb rabu rac- raca racc rach racu raha rahn rahr rahu rana ranc rann rara rarb raua raub rauc raun rbbb rbbr rcac rcbc rccb rccc rchb rcnr rhau rhun rnbr rrah rrna rrrr rrun ruah ruan ruba rubb rubu ruca ruch ruhh ruhn ruhr runa runc runn rura rurc ruru ruun uabc uaca uarc uaru uaua ubac ubar ubba ubra ucan ucar ucbc ucca ucha ucrc ucua uhna uhuh unaa unac unan unar unau unca uncc unch unha unna unra urac uran urau urba urca urch urna urra urrh urun urur uuuu

-aaa- aaaah aaarc aabaa aabba aabra aacbc aahaa aanch aarah aarau aarch aarna abaab ababa ababu abaca abana abanc abann abara abarn abaru abbac abban abbar abbur abcan abccc abhar abnub abrac abran abrar abrun abuna abura aburn aburr acaca acacb acana acar- acara acaua accra accub accur achab achan achar achau achna achua achun acrab acuba acura ahhaa ahhha ahrab ahran ahrar ahuan ahuna ahura ahuru anaba anana anara anaru anaua anaun anban anbar anbuh ancar ancha anchu anhar anhur annan annar anncr annua annur anuch anura ar-ab ara-c arab- araba araca arach arana aranc arara araru arbab arbar arcan arch- archa archb arhar arnac arnah arnan arnar arrah arran arrau