-up b-p b-u bbb bbg bbk bbo bbp bbr bbu bgb bgg bgk bgo bgp bgr bgu bkb bkg bkk bko bkp bkr bob bog bok boo bop bor bou bpb bpg bpo bpp bpr bpu brb brg brk bro brp brr bru bub bug buk buo bup bur buu g-p gbg gbk gbo gbp gbr gbu ggb ggg ggo ggp ggr ggu gkb gko gkp gob gog gok goo gop gor gou gpb gpg gpk gpo gpp gpr gpu grb grg grk gro grp grr gru gu- gub gug guk guo gup gur guu kbb kbk kbo kbp kbr kbu kgb kgo kgp kgu kkb kkk kkp kkr kku kob kog kok koo kop kor kou kpk kpo kpp kpr kpu krg krk kro krp krr kru kub kug kuk kup kur kuu ob- obb obg obk obo obp obr obu ogg ogo ogp okb okg okk oko okp okr oku oo- oob oog ook ooo oop oor op- opb opg opk opo opp opr or- orb org ork oro orp orr oru ou- ouk ouo oup our p-p pbb pbg pbk pbo pbp pbr pbu pgb pgg pgk pgo pgp pgr pkb pkg pko pkp pkr pku pob pog pok poo pop por pou ppb ppg ppk ppo ppp ppr ppu prb prg prk pro prp prr pru pub pug puk pup pur puu rbb rbg rbk rbo rbp rbr rbu rgb rgg rgk rgo rgp rgr rkb rkg rkk rko rkp rku rob rog rok roo rop ror rou rpb rpg rpk rpo rpp rpr rpu rrb rrg rrk rrp rrr rru rub rug ruk ruo rup rur ruu ubb ubg ubk ubo ubp ubr ubu ugb ugg ugk ugo ugp ugr ugu ukb ukk ukp ukr uku uob uog uok uoo uop uor up- upb upg upk upo upp upr upu ur- urb urg urk uro urp urr uru uug uur uuu

bbbb bbpr bbrg bkpg bkpr bobb bobo bobu bogg bogo boko boku boob boog book boop boor bopp bor- borg bork boro borr boru bouk boup bour brkb brob brog brok broo bror brou brrr brug brup bubb bubo bubu bugg bugo bukk buko buku bur- burb burg burk buro burp burr buru gbbo gggg ggpo gkrp gobo gogo goku goog gook goop goor gopo gopu gorb gorg goro gorp gorr gou- goug gouk goup gour gpgp gprp grbr grob grog grok groo grop gror grou grrr grub grug grur gubb gubu gugb gugg gugu gurb gurg gurk guro gurr guru kbbb kbbg kbbk kbbo kbbr kbbu kbgb kbgg kbgo kbgr kbkb kbkg kbkk kbko kbkr kbob kbok kboo kbpg kbpk kbpo kbpr kbpu kbrb kbrg kbrk kbro kbru kbub kbuk kbup kbur kbuu kgbb kgbr kggg kggo kggr kgor kgou kgpg kgpr kgrb kgrg kgrk kgro kgrr kkbb kkbg kkbo kkbr kkgb kkgo kkgr kkkk kkob kkoo kkor kkpk kkrb kkrk kkro kkrr kkup kkuu kobb kobk kobo kobr kobu kogb kogg kogo kogu kokb kokk koko kokp kokr koku koob koog kook kooo koop koor koou kopb kopp kopr kopu korb korg kork koro korr koru koub kour kouu kpbb kpbg kpbr kpgb kpgg kpgr kpkk kpkr kpob kpok kpoo kpop kpou kppk kppo kppp kppr kprb kprg kprk kpro kprp kprr kpru kpub kpug kpur krbb krbg krbk krbr krkk krko krkr krku krob krog krok kroo krop kror krpr krpu krrb krrg krrk krro krrr krug kruk krup krur kubb kubo kubr kubu kugb kugo kugr kukk kuku kuok kuoo kuop kupb kupr kupu kurb kurk kuro kurr kuru kuub kuuk kuur kuuu obbo obkb obok obor obro ogb ogog ogou ogpu ogro okgo okko okok okor okpo okro okur ooku oooo opkg opo- opor oppo orbb orbo orbu orgo orko oro- orok oror orro orub orup our- ouro ouu- pbpk pgou pgpu pgup pobo pogg pogo poko poku pook poop poor pop- popo popp porb porg pork poro porr pouk poup pour pppo pppp ppru ppur pro- prob prog proo prop prou pruu pubu pugo pugu puku pupu pur- purb purg puro purp purr puru rbbb rbbr rob- robb robo robu rogg rogo rokk roko rokr roku roob roog rook roop roor ropo rork roro roru roub rouk roup rpob rrrr rubb rubp rubu rugg rukk ruku ruok rupp ruro rurp ruru u-rp ubbo uggo ugro ugur uguu ukko ukok ukup ukur uor- upgo upor uppp uppu upup urgu uro- urok uroo urpo uruk urup urur uuuu

b-r-k bbook bo-bo bobko bobok bobr bobup bogor bogu bogur bokko bokok bokor booko booru borbo borgo borgu borko borku boro- borok boroo borou borro borup bouko bourg brobo brook brouk brrrr brugg bugok bugoo bukk- bukor burgk burgo burgu buroo burro burru buruk gboko go-go go-oo go-op gobbo gogok gogro goobo gopro gorgo grgur grogg grokk grook groop gropp group grrrr grubb gubbo gubru gukgo gurko guroo gurro gurur k-p-r k-pop k-rob ko-ko kobru kobuk kogro kokko kokor kokou kokur koogu kooru kopru korbo korgu korku korop koror korpo korro koruk korup kropp krupp kubok kugur kukko kukok kukup kukur kupur kurbu kurgo kurku kuruk kurup o-r-b oboro obrok ogogo ogugu okkur okobo okoro okrog okrug okubo okuku okuru ooooo opobo opoku orobo orrgo oruku oruro oukup ouoro pbook pbrok po-po pokou poopo poork popop poppo popup porgo poro- porog porro porur probo progg proor prop- propp propr pubo- puppo purku puro- purok ro-ro robbo robo- robop robor robur rokkk rorbu rouko rprop rubor rubup u-pop ubobo ugro- ugrug ukobu ukpor ukrop ukuug uroob urour urubu uuork uuuuu

bbbbbb bobrok bogoro bokoro booboo bookup borbor borkou borogo boroko bororo boubou bougou boukou bourou brokkr brorup brubru bububu bugbug buk-gu bukkur bukuru burbur burgoo burgor burrup buruku g-book gob-up gobbur gogoro googoo gooroo gorgor gourou groupo grugru gruppo gubgub gurbru gurugu kobogo koboko kogoro kokoku kokopo kokopu kokoro kokubo kookoo koopoo korkor kororo korubo koruru koubou koukou kouoro kourou krupuk kurogo kuroko kururu obourg okpoko ookroo oooooo oppurg orrour oukoop poboru pogoro pokuru pookoo poopoo pop-up popopo poporo poppop porrog poupko poupou