-up b-p b-u bbb bbo bbp bbr bbt bbu bob boo bop bor bot bou bpb bpo bpp bpr bpt bpu brb bro brp brr brt bru btb bto btp btr btt btu bub buo bup bur but buu ob- obb obo obp obr obt obu oo- oob ooo oop oor oot op- opb opo opp opr opt or- orb oro orp orr ort oru ot- otb oto otp otr ott otu ou- ouo oup our out p-p pbb pbo pbp pbr pbt pbu pob poo pop por pot pou ppb ppo ppp ppr ppt ppu prb pro prp prr prt pru pt- ptb pto ptp ptr ptt ptu pub pup pur put puu rbb rbo rbp rbr rbt rbu rob roo rop ror rot rou rpb rpo rpp rpr rpt rpu rrb rrp rrr rrt rru rtb rto rtp rtr rtt rtu rub ruo rup rur rut ruu tbb tbo tbp tbr tbt tbu to- tob too top tor tot tou tpb tpo tpp tpr tpt tpu trb tro trp trr trt tru ttb tto ttp ttr ttt ttu tub tuo tup tur tut tuu ubb ubo ubp ubr ubt ubu uob uoo uop uor uot up- upb upo upp upr upt upu ur- urb uro urp urr urt uru utb uto utp utr utt utu uur uut uuu

bbbb bbpr bobb bobo bobu boob boop boor boot bopp bor- boro borr bort boru botb boto bott boup bour bout bpot brob broo bror brot brou brrr brup brut btbp btob btor btrt bttb bubb bubo bubu bur- burb buro burp burr burt buru but- buto butt obbo obor obot obro oooo oort ootb ootp opo- opor oppo opto orbb orbo orbu oro- oror orot orro orto orub orup oto- otoo otor otpp otro otto ottu otur our- ouro ourt out- outb outo ouu- pobo poop poor poot pop- popo popp popt porb poro porr port poto pott potu poup pour pout pppo pppp ppru pptt ppur pro- prob proo prop prot prou prtp prtr prut pruu ptop pubu pupu pur- purb puro purp purr puru put- puto putt putu rbbb rbbr rob- robb robo robt robu roob roop roor root ropo roro rort roru roto rotr rott roub roup rout rpob rrrr rttp rubb rubp rubu rupp rupt ruro rurp ruru ruto rutt rutu tbrb tbtp tobo tobt tobu toor toot top- topo topp topt topu toro torp torr tort toru toto totr tott toup tour tout tppp tppr tptp tptr tput troo trop trot trou trpp trtr trub trut truu ttbb ttop tttt tubb tubo tubr tubu tuor tupo tupu turb turo turp turr turt turu tuto tutt tutu tuuo u-rp ubbo uor- upor uppp uppu upto upup uro- uroo urpo urup urur urut utor utto uttu uuuu

bo-bo bobr bobup boort booru borbo boro- boroo borot borou borro borup borut botou botro bottu bouto brobo broto brout brrrr btr-t buroo burro burru burtt burut buto- butor butot butou butuo butut o-r-b oboro obout ooooo opobo opto- optot optto orbot orobo orout ortoo oruro orutu ototo otour otpor ottur oubut ouoro outro outto po-po poopo poort popop poppo popup poro- porro porto portu porur potoo potop potor potro potto pottu probo proor proot prop- propp propr propt prot- proto prout prtor ptprb ptpro ptprr ptprt ptpru pubo- puppo puro- putor putt- putto puttu putuo putup ro-ro robbo robo- robop robor robot robrt robur rorbu roto- rotor rotot rotto roubt routt rprop rptor rubor rubup ruutu t-pop t-top tbtbt tbutt tobor tobot tobou topbt topo- topor topot toppo toptb topto topup torob torpo torro torto tortu toto- totoo totop totup touro tprot troop trop- tropo trott troup trout trubu trupt truro ttttt tubo- tubou tuotu tupou turbo turbt turot turro turtu turup turut tutor tutto tuuru u-pop ubobo upput uptop uroob urour urubu urutu utro- utrop utror uttur uturu ututo uuuuu

bbbbbb booboo bootup borbor bororo botoro boubou bourou boutob brorup brotto brubru brutto bububu burbot burbur burotu burrup burutu butbro buttto buutuo obturb oooooo oporto optoro optout orrour ottoor outour output outrup outtop outtro poboru poopoo pop-up popbot popopo poporo popout poppop poptop pottop poupou pppppp probot propup propur proto- prutot pupput purpur put-up putour putout putput puttoo puttur roboto rootup rotour rotout rotrou routot rub-up rubbot rubout rubro- rubutu ruptor rurutu rutour to-put toboot tootoo top-up toporu topout toppop tororo torpor tortor tortou tot-up totopo totoro totrot tourou toutou toutuo tropo- troppo trotro tuotuo turbo- turbot turtur tururu tutour tuttut u-boot up-put uppoor upprop uproot uruppu utroor

bbbbbbb boo-boo bootout borotou bottrop bourout bourrou buttout opt-out oroboro ottrott out-top outboob outburp outbutt outport outpour outputt outroop outroot poo-poo poopout pop-out pop-top portbou portour potoroo pourout proport prorupt protour proturb purport purpour put-out put-put puttout putupto rob-pot robopop rootout rootrot rub-out rubbour too-too topboot torpour tortour tototoo touboro tro-tro trotout trubrot turbott tut-tut ububboo

bbbbbbbb bo-bo-bo boot-top borututu broubrou buruburu poorpoor poroporo pourpour pro-tour protutor puttputt roboturb toottoot top-boot top-root torotoro tourtour turturro ubbubboo

borborbor poto-poto pro-tutor proprotor putt-putt tuotuorou tuttototo up-or-out

turbo-prop tutortrout

potoooooooo

propuppropup toptoptoptop

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