-al -ol a-a a-b a-t aaa aab aal aao aar aat aau ab- aba abb abl abo abr abt abu al- ala alb all alo alr alt alu aoa aob aol aoo aor aot aou ar- ara arb arl aro arr art aru at- ata atb atl ato atr att atu au- aua aub aul auo aur aut b-u baa bab bal bao bar bat bau bba bbb bbl bbo bbr bbt bbu bla blb bll blo blr blt blu boa bob bol boo bor bot bou bra brb brl bro brr brt bru bta btb btl bto btr btt btu bua bub bul buo bur but buu la- laa lab lal lao lar lat lau lba lbb lbl lbo lbr lbt lbu lla llb lll llo llr llt llu loa lob lol loo lor lot lou lra lrb lro lrr lrt lru lta ltb ltl lto ltr ltt ltu lua lub lul luo lur lut luu oaa oab oal oao oar oat oau ob- oba obb obl obo obr obt obu ola olb oll olo olt olu oo- ooa oob ool ooo oor oot or- ora orb orl oro orr ort oru ot- ota otb otl oto otr ott otu ou- oua oul ouo our out ra- raa rab ral rao rar rat rau rba rbb rbl rbo rbr rbt rbu rla rll rlo rlr rlt rlu roa rob rol roo ror rot rou rra rrb rrl rrr rrt rru rta rtb rtl rto rtr rtt rtu rua rub ruo rur rut ruu taa tab tal tao tar tat tau tba tbb tbl tbo tbr tbt tbu tla tll tlo tlr tlt tlu to- toa tob tol too tor tot tou tra trb trl tro trr trt tru tta ttb ttl tto ttr ttt ttu tua tub tul tuo tur tut tuu ua- uaa uab ual uao uar uat uau uba ubb ubl ubo ubr ubt ubu ula ulb ull ulo ulr ult ulu uoa uob uol uoo uor uot ur- ura urb url uro urr urt uru uta utb utl uto utr utt utu uua uur uut uuu

aaaa aaab aaal aaar aaba aabb aabl aabt aala aall aalo aalu aaoo aara aaro aart aaru aata aatt abaa abab abal abar abat abau abb- abba abbb abbo abbr abbt abla ablo aboa abob abol aboo abor abot abou abra abro abta abtu abua abul abut alaa alal alao alar alat alau alb- alba albo albu all- alla alll allo allr allu aloa alol aloo alor alot alou alro alta alto alua alur alut aoba aola aora aorb aort aoul aout arab aral arar arat arau arba arla arlo aroa arob aroo aror arr- arra arro arrr arrt arru arta arto artr arua arub arul arut at-l at-t ataa atab atal atar atat atla atlo atob atol ator atot atra atro atru atta atto attr attu atua atub atul atur auaa aul- aula aull aulo ault aulu auol aur- aura auro aut- auto baaa baal baar baat baba babb babo babr babu bala ball balo balt balu baol bar- bara barb baro barr bart baru bata bato batt batu bau- baul baur bbau bbbb bblb blaa blab blat blau blbt blob bloo blot blou blub blur blut boab boal boar boat boba bobb bobo bobu bola boll bolo bolt bolu boob bool boor boot bor- bora boro borr bort boru bota botb boto bott boua boul bour bout brab brao brat brau broa brob brol broo bror brot brou brrr brut btaa btla btob btor btrt bttb bual buar buat buba bubb bubo bubu bula bulb bull bult bulu buol bur- bura burb burl buro burr burt buru but- buta buto butt laaa laal laar laat laba labo labr labu lala lall lalo lalu laou lara larb larr lart laru lata lato latt latu laub laul laur laut lbar lblr lbrt llao llat llll lloa lloo loar loat lob- loba lobb lobo lola loll lolo loob lool loor loot lora loro lota lotl loto lotr lott loul lour lout louu lral lrat lrba lrrr lrta ltbl ltra lttr luau luba lula lull lulu lura lurt luta luua oaau oall oara obal obba obbo obla oblu obol obor obot obra obro olar olat olba olbo olla ollo olor olot olta oltu olur ooaa ooba oola oolo oooo oora oort ootb orab oral orao orar orat orba orbb orbo orbu orla orlo orlu oro- oror orot orra orro orta orto orub otar oto- otoo otor otra otro otta otto ottu otur ouat oula oulu our- oura ouro ourt out- outa outb outo ouu- raab raat raba rabb rabl rabo rabu rala ralb rall ralo ralt raob raol rara rarb raro rata rato ratt ratu raua raub raul raut rbbb rbbr rlab rlua roab roar roat rob- roba robb robo robt robu rola roll rolo rolt roob rool roor root rora roro rort roru rota rotl roto rotr rott roua roub roul rout rrat rrrr rtlt ruba rubb rubu rula rull rulo rura ruro ruru ruta rutl ruto rutt rutu taa- taal taar taat taba tabb tabl tabo tabu tala tall talo talu taoa taor taou tara tarb taro tarr tart taru tata tatb tato tatr tatt tatu taua taub taul taur taut tbar tbrb tbta toab toal toat toau toba tobo tobt tobu tol- tola toll tolo tolt tolu tooa tool toor toot tora toro torr tort toru tota toto totr tott toul tour tout traa trab tral trao trat trau troa troo trot trou trra trtr trub trut truu ttab ttbb tttt ttul tual tuao tuar tuat tuba tubb tubo tubr tubu tula tull tulo tulu tuor tura turb turo turr turt turu tuta tutl tuto tutt tutu tuuo uart uaru uata uatu uaua ubal ubar ubba ubbo ubla ublo ubra ulaa ular ulla ullo ullr ulo- ulta ulto ultt ulua ulul uor- ural urao urat urau urba urla uro- uroa urol uroo urra urur urut utal utau utor utto uttu uulu uuta uuuu

-aaa- aaata aabaa aabba aabra aalto