b-u bbb bbc bbo bbr bbt bbu bcb bcc bco bcr bct bcu bob boc boo bor bot bou brb bro brr brt bru btb btc bto btr btt btu bub buc buo bur but buu c-- cbb cbc cbo cbr cbt cbu ccb ccc cco ccr cct ccu co- cob coc coo cor cot cou crb crc cro crr crt cru ctb ctc cto ctr ctt ctu cub cuc cuo cur cut cuu ob- obb obc obo obr obt obu oc- ocb occ oco ocr oct ocu oo- oob ooc ooo oor oot or- orb orc oro orr ort oru ot- otb otc oto otr ott otu ou- ouc ouo our out rbb rbc rbo rbr rbt rbu rcb rcc rco rcr rct rcu rob roc roo ror rot rou rrb rrc rrr rrt rru rtb rtc rto rtr rtt rtu rub ruc ruo rur rut ruu tbb tbc tbo tbr tbt tbu tcb tcc tco tcr tct tcu to- tob toc too tor tot tou trb trc tro trr trt tru ttb ttc tto ttr ttt ttu tub tuc tuo tur tut tuu ubb ubc ubo ubr ubt ubu ucb ucc uco ucr uct ucu uob uoc uoo uor uot ur- urb urc uro urr urt uru utb utc uto utr utt utu uuc uur uut uuu

bbbb bbrc bcbc bccc bcor bcru bctc bcuc bobb bobo bobu boco bocu boob booc boor boot bor- boro borr bort boru botb boto bott bour bout brcb brob broc broo bror brot brou brrr brtc bruc brut btcc btob btor btrc btrt bttb bubb bubo bubu bucc buco bucu bur- burb buro burr burt buru but- buto butt c-bo cbbc cbcc cbcr cbct cbcu cbot cbrt cbtc ccbc cccb cccc cccu ccob ccoc ccrc ccrt cctb cctc cctt ccuc ccut cobb cobo cobu coco coct cocu coob coot cor- corb corc coro corr cort cotb cotc coto cott cotu coub cour cout crbc crbu crcc crcr crob croc croo cror crot crrt crtc crub crut ctor ctot ctrc cub- cubb cucc curb curo curr curt cut- cutc cuto cutt obbo obor obot obro ocbc occc occt ocro ocrr oct- octo ocur oocr oooo oort ootb orbb orbo orbu orco oro- oror orot orro ortc orto orub oto- otoo otor otro otto ottu otur oucc our- ouro ourt out- outb outo ouu- rbbb rbbr rcbc rcbo rccb rccc rctc rob- robb robo robt robu rocc roco roob roor root rorc roro rort roru rotc roto rotr rott roub rout rrrr rtcc rubb rubu ruct rurc ruro ruru ruto rutt rutu tbcb tbcc tbrb tccc tccu tctc tobo tobt tobu toco toor toot torc toro torr tort toru totc toto totr tott tour tout trcc troc troo trot trou trtc trtr trub truc trut truu ttbb tttt tubb tubo tubr tubu tucc tuco tuor turb turc turo turr turt turu tuto tutt tutu tuuo ubbo uboc ucbc ucrc ucut uocc uor- uro- uroo urur urut utor utto uttu uuoc uuuu

bo-bo boboc bobr bocor booco boort booru borbo boro- boroo borot borou borro borut botou botro bottu bouto brobo broto brout brrrr btr-t bucco bucur burcu buroo burro burru burtt buruc burut buto- butor butot butou butuo butut c-cor ccccc co-bo co-co cobot cocc- cocco cocto cocur corbo corbu coro- corot corto cott- cotto cottu couco courb court couru couto coutu croco croot crott crout cruor cubo- cubot cubub cuoco curro curto cutco cutcu cutro cutto o-r-b oboro obout occur ocr-b octo- octor ooooo orbot orobo oroco orout ortoo oruro orutu otcbb ototo otour ottur oubut ouoro outro outto r-co- ro-ro robbo robo- robor robot robrt robur rocco rocor rocou rorbu roto- rotor rotot rotto roubt routt rubor ruutu tbtbt tbutt tcobb tobor tobot tobou tocco toco- tocut torob torro torto tortu toto- totoo touro trboc troco trott trout trubu truco truro ttttt tubo- tubou tuctu tuotu turbo turbt turco turoc turot turro turtu turut tutor tutto tuuru ubobo uroob urour urubu urucu urutu utro- utror uttur uturu ututo uuuuu

bbbbbb bobcut boccob booboo borbor bororo botoro boubou bourou boutob brocco brocor brocot brotto brubru brutto bububu bucco- burbot burbur burcot burotu burutu butbro buttto butucu buutuo cobbob cocco- cococo cocto- coocoo corour cortot coruco coruro courbu courr- crobot crocco cruro- cucurb curour curror cururo cutcut cutout cuttoo obturb occour ocourt octuor oooooo orcutt orrour ottoor outcut outour outtro roboto rococo rocoto rotour rotout rotrou roucou routot rubbot rubout rubro- rubutu ruocco rurutu rutour to-cut toboot tootoo tororo tortor tortou totoro totrot tourou toutou toutuo trotro trucco tuotuo turbo- turbot turtur turucu tururu tutour tuttut u-boot utroor

bbbbbbb bocourt boo-boo bootcut bootout borotou bourout bourrou burcott buttout cooccur corrour cotorro cotutor cou-cou cut-out occurto oroboro ottrott outboob outbutt outroot rococco rocourt rootout rootrot rub-out rubbour too-too tortour tototoo touboro tro-tro trotout trubrot tucuru turbott tut-tut ububboo

bbbbbbbb bo-bo-bo boot-cut borututu broubrou brucourt buruburu butt-cut co-occur cocoroco corocoro cucurucu curucucu outcourt roboturb roucourt tocororo toottoot torotoro tourtour tucotuco tucutucu turturro ubbubboo

borborbor couroucou out-court roocoocoo tuco-tuco tucu-tuco tucu-tucu tuotuorou tuttototo

rococococo tutortrout

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