-al -ol a-a a-b aaa aab aaf aal aao aar aas aau ab- aba abb abf abl abo abr abs abu af- afa afb aff afl afo afr afs afu al- ala alb alf all alo alr als alu aoa aob aof aol aoo aor aos aou ar- ara arb arf arl aro arr ars aru as- asa asb asf asl aso asr ass asu au- aua aub auf aul auo aur aus b-u baa bab baf bal bao bar bas bau bba bbb bbf bbl bbo bbr bbs bbu bfa bfb bff bfl bfo bfr bfs bfu bla blb blf bll blo blr bls blu boa bob bof bol boo bor bos bou bra brb brf brl bro brr brs bru bsa bsb bsf bsl bso bsr bss bsu bua bub buf bul buo bur bus buu faa fab faf fal fao far fas fau fba fbb fbf fbl fbo fbr fbs fbu ffa fff ffl ffo ffr ffs ffu fla flb flf fll flo flr fls flu foa fob fof fol foo for fos fou fra frb frf frl fro frr frs fru fsa fsb fsf fsl fso fsr fss fsu fua fub fuf ful fuo fur fus fuu la- laa lab laf lal lao lar las lau lba lbb lbf lbl lbo lbr lbs lbu lfa lfb lff lfl lfo lfr lfs lfu lla llb llf lll llo llr lls llu loa lob lof lol loo lor los lou lra lrb lrf lro lrr lrs lru lsa lsb lsf lsl lso lsr lss lsu lua lub luf lul luo lur lus luu oaa oab oaf oal oao oar oas oau ob- oba obb obf obl obo obr obs obu of- ofa ofb off ofl ofo ofr ofs ofu ola olb olf oll olo ols olu oo- ooa oob oof ool ooo oor oos or- ora orb orf orl oro orr ors oru os- osa osb osf osl oso osr oss osu ou- oua ouf oul ouo our ous ra- raa rab raf ral rao rar ras rau rba rbb rbf rbl rbo rbr rbs rbu rfa rfb rff rfl rfo rfr rfs rfu rla rlf rll rlo rlr rls rlu roa rob rof rol roo ror ros rou rra rrb rrf rrl rrr rrs rru rsa rsb rsf rsl rso rsr rss rsu rua rub ruf ruo rur rus ruu saa sab saf sal sao sar sas sau sba sbb sbf sbl sbo sbr sbs sbu sfa sfb sff sfl sfo sfr sfs sfu sla slb slf sll slo slr sls slu soa sob sof sol soo sor sos sou sr- sra srb srf srl sro srr srs ss- ssa ssb ssf ssl sso ssr sss ssu sua sub suf sul suo sur sus suu ua- uaa uab uaf ual uao uar uas uau uba ubb ubf ubl ubo ubr ubs ubu ufa uff ufl ufo ufr ufs ufu ula ulb ulf ull ulo ulr uls ulu uoa uob uol uoo uor uos ur- ura urb urf url uro urr urs uru usa usb usf usl uso usr uss usu uua uur uus uuu

-ous a-fu aaaa aaab aaaf aaal aaar aaas aaba aabb aabl aafa aafb aaff aafl aala aall aalo aals aalu aaoo aara aaro aars aaru aasa aasf aass aasu aaus abaa abab abaf abal abar abas abau abb- abba abbb abbo abbr abbs abff abla ablo abls aboa abob abof abol aboo abor abos abou abra abro abrs abs- absa absf absl abss absu abua abuf abul abus afaa afao afar afbs affa affo affs afla afoa afol afoo afor afr- afra afro afrs afru afsa afsb afua afus alaa alal alao alar alas alau alb- alba albo albs albu alfa alfs all- alla alll allo allr alls allu aloa alof alol aloo alor alos alou alro alsa also alua aluf alur alus aoba aola aora aorb aors aoss aouf aoul aous arab araf aral arar aras arau arba arbs arfa arfb arff arfs arfu arla arlo aroa arob aroo aror aros arr- arra arro arrr arrs arru ars- arsa arso arsu arua arub arul asaa asab asaf asal asao asar asas asau asba asbo asbu asfa asla aslo aslr asob asof asor asos asou asra asro asrs asru assa assl asso assr asss assu asub asur asus auaa aufs aul- aula aulf aull aulo auls aulu auol aur- aura auro ausa ausu baaa baaf baal baar baas baba babb babo babr babs babu baff bafo bala balf ball balo bals balu baol baos bar- bara barb barf baro barr bars baru basa basf baso bass basu bau- bauf baul baur bbas bbau bbbb bbbs bblb bbls bfas bffl bffs bfsr blaa blab blas blau blls blob bloo blou blss blub bluf blur blus boab boal boar boas boba bobb bobo bobs bobu bofa boff bofs bofu bola boll bolo bols bolu boob boof bool boor boos bor- bora borf boro borr bors boru bosa boso boss bosu boua bouf boul bour bous brab braf brao bras brau brfu brls broa brob brol broo bror bros brou brrr brrs brsb brsr brus bsaa bsas bsfa bsff bsfs bsos bsra bual buar buba bubb bubo bubs bubu buff bufo bufr bula bulb bull buls bulu buol bur- bura burb burl buro burr burs buru busa buss busu buus faaa faas faba fabo fabs fabu fafa faff fafo fala fall falo fals falu fara farb farl faro farr fars faru fasa faso fass faul faur fbar fbla fbrs fbus ffar ffff ffrr ffsa ffss flab flao flob floo flor flos flou flub fluf fluo flur flus foaf foal foar foba fobs fofo fola foll folo folr fols foof fool foos for- fora forb forl foro forr fors fosa fosb foso foss foua foul four fous frab fras frau frla frob frol fros frou frsb frso frub fsas fsfo fsra fssa fssf fuar fubb fubs fubu fuff fufu fula full fuls fulu fuor fur- fura furl furo furr furs fusa fuso fuss fusu laaa laal laar