-al -ol a-a a-b aaa aab aaf aal aao aar aau ab- aba abb abf abl abo abr abu af- afa afb aff afl afo afr afu al- ala alb alf all alo alr alu aoa aob aof aol aoo aor aou ar- ara arb arf arl aro arr aru au- aua aub auf aul auo aur b-u baa bab baf bal bao bar bau bba bbb bbf bbl bbo bbr bbu bfa bfb bff bfl bfo bfr bfu bla blb blf bll blo blr blu boa bob bof bol boo bor bou bra brb brf brl bro brr bru bua bub buf bul buo bur buu faa fab faf fal fao far fau fba fbb fbf fbl fbo fbr fbu ffa fff ffl ffo ffr ffu fla flb flf fll flo flr flu foa fob fof fol foo for fou fra frb frf frl fro frr fru fua fub fuf ful fuo fur fuu la- laa lab laf lal lao lar lau lba lbb lbf lbl lbo lbr lbu lfa lfb lff lfl lfo lfr lfu lla llb llf lll llo llr llu loa lob lof lol loo lor lou lra lrb lrf lro lrr lru lua lub luf lul luo lur luu oaa oab oaf oal oao oar oau ob- oba obb obf obl obo obr obu of- ofa ofb off ofl ofo ofr ofu ola olb olf oll olo olu oo- ooa oob oof ool ooo oor or- ora orb orf orl oro orr oru ou- oua ouf oul ouo our ra- raa rab raf ral rao rar rau rba rbb rbf rbl rbo rbr rbu rfa rfb rff rfl rfo rfr rfu rla rlf rll rlo rlr rlu roa rob rof rol roo ror rou rra rrb rrf rrl rrr rru rua rub ruf ruo rur ruu ua- uaa uab uaf ual uao uar uau uba ubb ubf ubl ubo ubr ubu ufa uff ufl ufo ufr ufu ula ulb ulf ull ulo ulr ulu uoa uob uol uoo uor ur- ura urb urf url uro urr uru uua uur uuu

a-fu aaaa aaab aaaf aaal aaar aaba aabb aabl aafa aafb aaff aafl aala aall aalo aalu aaoo aara aaro aaru abaa abab abaf abal abar abau abb- abba abbb abbo abbr abff abla ablo aboa abob abof abol aboo abor abou abra abro abua abuf abul afaa afao afar affa affo afla afoa afol afoo afor afr- afra afro afru afua alaa alal alao alar alau alb- alba albo albu alfa all- alla alll allo allr allu aloa alof alol aloo alor alou alro alua aluf alur aoba aola aora aorb aouf aoul arab araf aral arar arau arba arfa arfb arff arfu arla arlo aroa arob aroo aror arr- arra arro arrr arru arua arub arul auaa aul- aula aulf aull aulo aulu auol aur- aura auro baaa baaf baal baar baba babb babo babr babu baff bafo bala balf ball balo balu baol bar- bara barb barf baro barr baru bau- bauf baul baur bbau bbbb bblb bffl blaa blab blau blob bloo blou blub bluf blur boab boal boar boba bobb bobo bobu bofa boff bofu bola boll bolo bolu boob boof bool boor bor- bora borf boro borr boru boua bouf boul bour brab braf brao brau brfu broa brob brol broo bror brou brrr bual buar buba bubb bubo bubu buff bufo bufr bula bulb bull bulu buol bur- bura burb burl buro burr buru faaa faba fabo fabu fafa faff fafo fala fall falo falu fara farb farl faro farr faru faul faur fbar fbla ffar ffff ffrr flab flao flob floo flor flou flub fluf fluo flur foaf foal foar foba fofo fola foll folo folr foof fool for- fora forb forl foro forr foua foul four frab frau frla frob frol frou frub fuar fubb fubu fuff fufu fula full fulu fuor fur- fura furl furo furr laaa laal laar laba labo labr labu lafb laff lala lall lalo lalu laou lara larb larf larr laru laub lauf laul laur lbar lblr llao llll lloa lloo loaf loar lob- loba lobb lobo lofa loff lola loll lolo loob loof lool loor lora loro loul lour louu lral lrba lrrr luau luba luff lufu lula lull lulu lura luua oaau oafo oall oara obal obba obbo obla oblu obol obor obra obro off- offa offo offr offu ofla ofor ofra olaf olar olba olbo olfa olla ollo olof olor olur ooaa ooba ooff oola oolo oooo oora orab oral orao orar orba orbb orbo orbu orff orfu orla orlo orlu oro- orof oror orra orro orub ouff oula oulu our- oura ouro ouu- raab raaf raba rabb rabl rabo rabu rafa raff rala ralb ralf rall ralo raob raol rara rarb rarf raro raua raub rauf raul rbaf rbbb rbbr rffl rlab rlua roab roaf roar rob- roba robb robo robu roff rofl rofo rola rolf roll rolo roob roof rool roor rora roro roru roua roub rouf roul rrrr ruba rubb rubu rufa ruff rufo rula rull rulo rura ruro ruru uafa uaru uaua ubal ubar ubba ubbo ubla ublo ubra uffa ufra ulaa ular ulla ullo ullr ulo- ulua ulul uofa uofl uofo uor- ural urao urau urba urfa urff urla uro- uroa urol uroo urra urur uulu uuuu

-aaa- aabaa aabba aabra aarau abaab ababa ababu abala aball abalo abara abaru abbar abbou abbur abfab ablur aboab abobl abobo abora abrar abrol abula abull abura aburr afall afara affor afful aflao aflou afofl afool afoou afoul afro- afrob afrol afula afull afurl alaba alala alalu alaol alara albal albar albo- albor albul albur alfur allaf allal allar allbo allo- alloa allof alloo allor allra allur aloaf aloba aloof aloor alora alorf aluar alula alull ar-ab arab- araba arabo arafo aralu arara araru araul arbab arbar arbol arbor arlob aroab aroar aroba arola aroll aroof aroor arora aroul arrau arrou arrua aruaa aruba arufo arula arulo arura aruru auala aulla aulo- aural aurar auro- auroa