a-a a-b a-i aaa aab aaf aai aao aar aau ab- aba abb abf abi abo abr abu af- afa afb aff afi afo afr afu ai- aia aib aif aii aio air aiu aoa aob aof aoi aoo aor aou ar- ara arb arf ari aro arr aru au- aua aub auf aui auo aur b-u baa bab baf bai bao bar bau bba bbb bbf bbi bbo bbr bbu bfa bfb bff bfi bfo bfr bfu bi- bia bib bif bii bio bir biu boa bob bof boi boo bor bou bra brb brf bri bro brr bru bua bub buf bui buo bur buu faa fab faf fai fao far fau fba fbb fbf fbi fbo fbr fbu ffa fff ffi ffo ffr ffu fia fib fif fii fir fiu foa fob fof foi foo for fou fra frb frf fri fro frr fru fua fub fuf fui fuo fur fuu i-f ia- iaa iab iaf iai iao iar iau iba ibb ibf ibi ibo ibr ibu ifa ifb iff ifi ifo ifr ifu iia iib iif iii iio iir iiu io- ioa iob iof ioi ioo ior iou ir- ira irb irf iri iro irr iru iu- iua iub iui iur o-i oaa oab oaf oai oao oar oau ob- oba obb obf obi obo obr obu of- ofa ofb off ofi ofo ofr ofu oia oib oif oii oio oir oiu oo- ooa oob oof ooi ooo oor or- ora orb orf ori oro orr oru ou- oua ouf oui ouo our ra- raa rab raf rai rao rar rau rba rbb rbf rbi rbo rbr rbu rfa rfb rff rfi rfo rfr rfu ria rib rif rii rio rir roa rob rof roi roo ror rou rra rrb rrf rri rrr rru rua rub ruf rui ruo rur ruu ua- uaa uab uaf uai uao uar uau uba ubb ubf ubi ubo ubr ubu ufa uff ufi ufo ufr ufu uia uib uif uii uio uir uiu uoa uob uoo uor ur- ura urb urf uri uro urr uru uua uur uuu

a-fu a-ii aaaa aaab aaaf aaai aaar aaba aabb aabi aafa aafb aaff aafi aaib aaii aaoo aara aari aaro aaru abaa abab abaf abai abar abau abb- abba abbb abbi abbo abbr abff abia abib abir abiu aboa abob abof aboo abor abou abra abri abro abua abuf afaa afao afar affa affi affo afia afib afif afir afoa afoo afor afr- afra afri afro afru afua aiai aiba aibo aiff aiia aiib aiir aioi aira airi airo aiui aoba aora aorb aouf arab araf arai arar arau arba arbi arfa arfb arff arfu aria arib arif arii ario aroa arob aroi aroo aror arr- arra arri arro arrr arru arua arub arui auaa aufi aur- aura auri auro ba-i baaa baaf baar baba babb babi babo babr babu baff bafo baia baib baio bair bar- bara barb barf bari baro barr baru bau- bauf baur bbau bbbb biaf biao biar biba bibb bibi bibo bifa biff bifi bio- bioi biou bira birb biri biro birr biru boab boai boar boba bobb bobi bobo bobu bofa boff bofu boi- boii boiu boob boof boor bor- bora borf bori boro borr boru boua bouf bour brab braf brai brao brau brfu bria brio broa brob broo bror brou brrr buar buba bubb bubi bubo bubu buff bufo bufr buif buir buiu bur- bura burb buri buro burr buru faaa faba fabi fabo fabu fafa faff fafi fafo faio fair fara farb faro farr faru faur fbar ffar ffff ffii ffrr fiaa fiaf fiar fiba fifa fiff fifi fifo fiii fior fira fiua foaf foar foba fofo foia foof for- fora forb fori foro forr foua four frab frau fria frib frio frob frou frub fuar fubb fubu fuff fufu fuir fuor fur- fura furi furo furr iaaa iaai iaba iaff iaia iara iaru ibar ibfi ibia ibra ibri ibro ifaa ifao ifar ifbb ifor ifra ifrb ifrf ifri iifa iiii iiio iioi iioo iira ioba iobi ioii ioio ioof iooi iooo iora iori iraf irai irao irar irfu iri- iria irio irob irra irri iuiu iura oaau oafo oara obai obba obbo obia oboi obor obra obri obro off- offa offo offr offu ofor ofra oiba oiii oira ooaa ooba oobi ooff ooia oooo oora orab orai orao orar orba orbb orbi orbo orbu orff orfi orfu ori- oria orif orio oro- orof oror orra orri orro orub ouff ouii ouir our- oura ouro ouu- raab raaf raba rabb rabi rabo rabu rafa raff rafi raia raif raii rair raiu raob rara rarb rarf rari raro raua raub rauf rbaf rbbb rbbr riaa riab riai riau rib- riba ribo ribu rifa riff rifu riia riif riou riri roab roaf roar rob- roba robb robi robo robu roff rofo roia roif roio roir roiu roob roof rooi roor rora rori roro roru roua roub rouf rrif rrrr ruba rubb rubi rubu rufa ruff rufo ruif rura ruri ruro ruru uafa uair uaru uaua ubar ubba ubbi ubbo ubii ubir ubra uffa ufra uira uirr uofa uofo uor- urai urao urau urba urbi urfa urff urfi uria urib urif uriu uro- uroa uroo urra urri urur uuri uuuu

-aaa- a-fib a-iii aaaai aabaa aabba aabra aafir aaiib aarau aaria abaab ababa ababu abaia abair abara abari abaru abbai abbar abbia abbou abbur abfab abio- abira aboab abobo abora abrar abura aburi aburr afair afaiu afara afari affif affor afifa afoou afro- afrob aiaff aiaia aibar aiboa aifar airai airba airof airor aiura ar-ab arab- araba arabi arabo arafo araia arara arari araru arbab arbar arbia arbib arbir arbor ariab aribo arioi aroab aroar aroba aroof aroor arora arrai arrau arria arrou arrua aruaa aruba arufo arura aruru aurai aurar auri- auria auro- auroa auror aurra baari babai babar babau babia babio baboo babou babra babur baffa baffi bafia bafou bafra bai-u baiao baiba baira bairo bairu baori baoro baraa barab barai barao barar barba