a-fu aaaa aaab aaaf aaal aaar aaba aabb aabl aabt aafa aafb aaff aafl aala aall aalu aara aart aaru aata aatf aatt abaa abab abaf abal abar abat abau abb- abba abbb abbr abbt abff abla abra abta abtu abua abuf abul abut afaa afar afat affa afft afla afr- afra afru afta afua alaa alal alar alat alau alb- alba albu alfa all- alla alll allr allu alta alua aluf alur alut arab araf aral arar arat arau arba arfa arfb arff arft arfu arla arr- arra arrr arrt arru arta artr arua arub arul arut at-l at-t ataa atab atal atar atat atfb atla atra atru atta attr attu atua atub atul atur auaa aul- aula aulf aull ault aulu aur- aura aut- baaa baaf baal baar baat baba babb babr babu baff baft bala balf ball balt balu bar- bara barb barf barr bart baru bata batf batt batu bau- bauf baul baur bbau bbbb bblb bffl bfta bftt blaa blab blat blau blbt blub bluf blur blut brab braf brat brau brfu brrr brut btaa btaf btla btrt bttb bual buar buat buba bubb bubu buff bufr bula bulb bull bult bulu bur- bura burb burl burr burt buru but- buta butt faaa faba fabu fafa faff fala fall falt falu fara farb farl farr fart faru fata fatf fatt faul faur faut fbar fbla ffar ffff ffrr fftf flab flat flub fluf flur frab frat frau frla frta frub ft-l ftlb ftub fuar fuat fubb fubu fuff fufu fula full fulu fur- fura furl furr furt futa futu laaa laal laar laat laba labr labu lafb laff laft lala lall lalu lara larb larf larr lart laru lata latt latu laub lauf laul laur laut lbar lblr lbrt lfat llat llll lral lrat lrba lrrr lrta ltbf ltbl ltra lttr luau luba luff luft lufu lula lull lulu lura lurt luta luua raab raaf raat raba rabb rabl rabu rafa raff raft rala ralb ralf rall ralt rara rarb rarf rata ratf ratt ratu raua raub rauf raul raut rbaf rbbb rbbr rffl rlab rlua rrat rrrr rtbf rtfb rtlt ruba rubb rubu rufa ruff ruft rula rull rura ruru ruta rutl rutt rutu taa- taaf taal taar taat taba tabb tabl tabu tafa taff taft tala tall talu tara tarb tarf tarr tart taru tata tatb tatr tatt tatu taua taub taul taur taut tbaf tbar tbrb tbta tfal traa trab traf tral trat trau trfr trra trtr trub trut truu ttab ttbb ttfa ttff tttt ttul tual tuar tuat tuba tubb tubr tubu tufa tuff tuft tufu tula tull tulu tura turb turf turr turt turu tuta tutl tutt tutu uafa uart uaru uata uatu uaua ubal ubar ubba ubla ubra ubtf uffa ufra ulaa ular ulft ulla ullr ulta ultt ulua ulul ural urat urau urba urfa urff urft urla urra urur urut utal utau uttu uulu uuta uutf uuuu