-ol b-u bbb bbl bbo bbr bbt bbu blb bll blo blr blt blu bob bol boo bor bot bou brb brl bro brr brt bru btb btl bto btr btt btu bub bul buo bur but buu lbb lbl lbo lbr lbt lbu llb lll llo llr llt llu lob lol loo lor lot lou lrb lro lrr lrt lru ltb ltl lto ltr ltt ltu lub lul luo lur lut luu ob- obb obl obo obr obt obu olb oll olo olt olu oo- oob ool ooo oor oot or- orb orl oro orr ort oru ot- otb otl oto otr ott otu ou- oul ouo our out rbb rbl rbo rbr rbt rbu rll rlo rlr rlt rlu rob rol roo ror rot rou rrb rrl rrr rrt rru rtb rtl rto rtr rtt rtu rub ruo rur rut ruu tbb tbl tbo tbr tbt tbu tll tlo tlr tlt tlu to- tob tol too tor tot tou trb trl tro trr trt tru ttb ttl tto ttr ttt ttu tub tul tuo tur tut tuu ubb ubl ubo ubr ubt ubu ulb ull ulo ulr ult ulu uob uol uoo uor uot ur- urb url uro urr urt uru utb utl uto utr utt utu uur uut uuu

bbbb bblb blbt blob bloo blot blou blub blur blut bobb bobo bobu boll bolo bolt bolu boob bool boor boot bor- boro borr bort boru botb boto bott boul bour bout brob brol broo bror brot brou brrr brut btob btor btrt bttb bubb bubo bubu bulb bull bult bulu buol bur- burb burl buro burr burt buru but- buto butt lblr lbrt llll lloo lob- lobb lobo loll lolo loob lool loor loot loro lotl loto lotr lott loul lour lout louu lrrr ltbl lttr lull lulu lurt obbo oblu obol obor obot obro olbo ollo olor olot oltu olur oolo oooo oort ootb orbb orbo orbu orlo orlu oro- oror orot orro orto orub oto- otoo otor otro otto ottu otur oulu our- ouro ourt out- outb outo ouu- rbbb rbbr rob- robb robo robt robu roll rolo rolt roob rool roor root roro rort roru rotl roto rotr rott roub roul rout rrrr rtlt rubb rubu rull rulo ruro ruru rutl ruto rutt rutu tbrb tobo tobt tobu tol- toll tolo tolt tolu tool toor toot toro torr tort toru toto totr tott toul tour tout troo trot trou trtr trub trut truu ttbb tttt ttul tubb tubo tubr tubu tull tulo tulu tuor turb turo turr turt turu tutl tuto tutt tutu tuuo ubbo ublo ullo ullr ulo- ulto ultt ulul uor- uro- urol uroo urur urut utor utto uttu uulu uuuu

bloor blorb blort bloto blott blout blurb blurr blurt bluto bo-bo bobr boll- bollo bollu bolto boort booru borbo boro- boroo borot borou borro borul borut botou botro bottu boul- boulo boult bouto brobo broll brolo brool broto brout brrrr brull btr-t bulb- bull- bulou bulto bulul bulut buolt burol buroo burro burru burtt burut buto- butor butot butou butuo butut lobbo lobo- lobor lollo lolol loobu lorut lotor lotru lotto louro lubur lulul lutol lutto o-r-b obolo oboro obout ollur olotu olour ooooo orbot orobo orolu orout ortoo oruro orutu otolo ototo otour ottur otulu oubut oullo ouoro ourol outro outto ro-ro robbo robo- robor robot robrt robur rollo rorbu roto- rotol rotor rotot rotto roubt roull routt rubor rullo rutul ruutu tbolt tbtbt tbutt tllbr tobol tobor tobot tobou tolbo tollo toloo tolor tolu- toolt torob torro torto tortu torul toto- totoo toull touro troll trott troul trout trubu trull truro ttttt tubo- tubou tubul tulor tulou tuotu turbo turbt turot turro turtu turul turut tutor tutto tuuru ubobo ubolt ullur ululu uluru uroob urour urtlu urubu urutu utro- utror uttur uturu ututo uuuuu

b-roll bbbbbb blotto blottr blubbo blublu bolbol bolbro bolobo bololo booboo borbor bororo botbol botoro bottlo botulu boubou boulot boulou bourou boutob brotto brubru brutto bububu bulbo- bulbul bullou bulolo burbot burbur burolo burotu burutu butbro buttlo buttto buutuo lloro lobolo lolobo loloru looloo loulou lourlo loutou loutro lubbor lurulu obturb oooooo orobol orrour ortulu ottoor outlot outoul outour outtro robolo roboto rollot rotolo rotour rotout rotrou rotulo routot rubbot rubout rubro- rubutu rurutu rutour ruurlo toboot tolbot toluol tootoo tororo tortor tortou totoro totrot toubul tourou toutou toutuo trollt trotro trullo tubul- tuotuo turbo- turbot turtur tururu tutour tuttul tuttut u-bolt u-boot ulloor uolbut utroor uutool

bbbbbbb blotout blurout boo-boo bootout borobul borotou bourout bourrou buttout looroll oltroto oroboro ottrott out-lot outblot outboob outbutt outroll outroot rollout rootout rootrot roublot rub-out rubbour ruotolo tol-lol too-too tortour tototoo touboro tro-tro trotout trubrot tubulo- tul-tul turbott tut-tut ububboo

bbbbbbbb blurtout bo-bo-bo borututu broubrou bullrout buruburu oolooloo roboturb roll-out roulroul toolo toottoot torotoro tourtour tourtrol trolloll turturro ubbubboo uluborlu

bolo-bolo borborbor bull-tour trolltoll tuotuorou tuttototo

bortolotto bull-trout tourlourou tutortrout

lootrotortool

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