-up b-p b-u bbb bbf bbg bbo bbp bbr bbu bfb bff bfg bfo bfp bfr bfu bgb bgf bgg bgo bgp bgr bgu bob bof bog boo bop bor bou bpb bpf bpg bpo bpp bpr bpu brb brf brg bro brp brr bru bub buf bug buo bup bur buu fbb fbf fbg fbo fbp fbr fbu fff ffg ffo ffp ffr ffu fgb fgf fgg fgp fgr fob fof fog foo fop for fou fpb fpg fpo fpp fpr fpu frb frf frg fro frp frr fru fub fuf fug fuo fup fur fuu g-p gbf gbg gbo gbp gbr gbu gfb gff gfo gfp gfr ggb ggg ggo ggp ggr ggu gob gof gog goo gop gor gou gpb gpf gpg gpo gpp gpr gpu grb grf grg gro grp grr gru gu- gub guf gug guo gup gur guu ob- obb obf obg obo obp obr obu of- ofb off ofg ofo ofp ofr ofu ogf ogg ogo ogp oo- oob oof oog ooo oop oor op- opb opf opg opo opp opr or- orb orf org oro orp orr oru ou- ouf ouo oup our p-p pbb pbf pbg pbo pbp pbr pbu pfb pff pfg pfo pfp pfr pfu pgb pgf pgg pgo pgp pgr pob pof pog poo pop por pou ppb ppf ppg ppo ppp ppr ppu prb prf prg pro prp prr pru pub puf pug pup pur puu rbb rbf rbg rbo rbp rbr rbu rfb rff rfg rfo rfp rfr rfu rgb rgf rgg rgo rgp rgr rob rof rog roo rop ror rou rpb rpf rpg rpo rpp rpr rpu rrb rrf rrg rrp rrr rru rub ruf rug ruo rup rur ruu ubb ubf ubg ubo ubp ubr ubu uff ufg ufo ufp ufr ufu ugb ugf ugg ugo ugp ugr ugu uob uog uoo uop uor up- upb upf upg upo upp upr upu ur- urb urf urg uro urp urr uru uug uur uuu

bbbb bbpr bbrg bfgf bfpo bfpp bobb bobo bobu boff bofu bogg bogo boob boof boog boop boor bopp bor- borf borg boro borr boru bouf boup bour brfu brob brog broo bror brou brrr brug brup bubb bubo bubu buff bufo bufr bugg bugo bur- burb burg buro burp burr buru fbop ffff ffrr fofo fogg fogo foof fopp for- forb forg foro forr foug foup four fprf frob frog frop frou frub frug fubb fubu fuff fufu fugo fugu fuor fur- furg furo furr gbbo gfor ggfg gggg ggpo gobo goff gofr gofu gogo goof goog goop goor gopo gopu gorb gorf gorg goro gorp gorr gou- gouf goug goup gour gpgp gprp grbr grob grof grog groo grop gror grou grrr grub gruf grug grur gubb gubu guff gugb gugg gugu gurb gurg guro gurr guru obbo obor obro off- offo offr offu ofgo ofor ogb ogfr ogog ogou ogpu ogro ooff oooo opo- opor oppo orbb orbo orbu orff orfu orgo oro- orof oror orro orub orup ouff our- ouro ouu- pbrf pfff pffr pgou pgpu pgup pobo poff pogg pogo poof poop poor pop- popo popp porb porg poro porr pouf poup pour pppo pppp pprf ppru ppur pro- prob prof prog proo prop prou pruf pruu pubu puff pugo pugu pupu pur- purb purg puro purp purr puru rbbb rbbr rob- robb robo robu roff rofo rogg rogo roob roof roog roop roor ropo roro roru roub rouf roup rpob rpof rrrr rubb rubp rubu ruff rufo rugg rupp ruro rurp ruru u-rp ubbo ufpb uggo ugro ugur uguu uofg uofo uor- upgo upor uppp uppu upup urff urgu uro- uroo urpo urup urur uuuu

bfrog bo-bo bobr bobup boffo bogof bogor bogu bogur booru borbo borgo borgu boro- boroo borou borro borup bourg brobo brrrr bruff brugg buffo bugoo burgo burgu buroo burro burru fogbo foggo fogou fogup forgo forro forur fougo fourb fourg fouro froop froup frugo fu-fu fugro fugug furbo furo- furor go-go go-oo go-op gobbo gofor gofup gogro goobo gooff gopro gorgo gprof grgur groff grogg groof groop gropp grouf group grrrr grubb gruff gubbo gubru guroo gurro gurur o-r-b oboro offof ofour ofpop ogogo ogugu ooooo opobo orfor orobo orrgo oruro ouoro pforp po-po poopo popop poppo popup porgo poro- porog porro porur pouff probo proff progg proof proor prop- propp propr pubo- puppo puro- ro-ro robbo robo- robop robor robur rofor rogfp rorbu rprop rubof rubor rubup ruffo rufo- u-pop ubobo ufofu uforb ugoff ugro- ugrug upfor upoff uroob urour urubu uuuuu

bbbbbb bogoff bogoro booboo borbor borogo bororo boubou bougou bourou brorup brubru bububu bugbug bugoff burbur burgoo burgor burrup foboff foofoo foofur foufou fougou fourgo fourof fourou frbroo froggo fruupp furfur furour furrfu go-off gob-up gobbur gogoro goofup googoo gooroo gopoof gorgor gourou grouff groupo grugru gruppo gubgub gurbru gurugu obourg off-go ofpoor oooooo oppurg orrour poboru pogoro poofup poopoo pop-up popfor popoff popopo poporo poppop porrog poupou pppppp profor profur propup propur puffup purpur purugu robo-g rogoff roogoo rub-up ruboff rubro- uppoor upprop uruppu

bbbbbbb boo-boo bourgou bourrou foo-foo fou-fou furrour goo-goo goof-up goofoff goooooo gru-gru gurpurb off-off ofproof ogogoro ogopogo orgburo oroboro p-group poo-poo pop-off pubgrub purpour robopop rub-off rubbour ububboo ugrupur urgup

bbbbbbbb bo-bo-bo bogogobo borbogou broubrou buruburu fourbour froufrou gogogogo goof-off gouforou groogroo poorpoor popgroup poroporo pourpour ubbubboo

bogo-bogo borborbor bourbourg four-four frou-frou goofproof groo-groo proofgoof puff-puff

bobobougou goof-proof

proof-proof

propuppropup

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