-up b-p b-u bbb bbg bbk bbo bbp bbr bbs bbu bgb bgg bgk bgo bgp bgr bgs bgu bkb bkg bkk bko bkp bkr bks bob bog bok boo bop bor bos bou bpb bpg bpo bpp bpr bps bpu brb brg brk bro brp brr brs bru bsb bsg bsk bso bsp bsr bss bsu bub bug buk buo bup bur bus buu g-p gbg gbk gbo gbp gbr gbs gbu ggb ggg ggo ggp ggr ggs ggu gkb gko gkp gks gob gog gok goo gop gor gos gou gpb gpg gpk gpo gpp gpr gps gpu grb grg grk gro grp grr grs gru gsb gsg gsk gso gsp gsr gss gsu gu- gub gug guk guo gup gur gus guu kbb kbk kbo kbp kbr kbs kbu kgb kgo kgp kgs kgu kkb kkk kkp kkr kks kku kob kog kok koo kop kor kos kou kpk kpo kpp kpr kps kpu krg krk kro krp krr krs kru ksb ksg ksk kso ksp ksr kss ksu kub kug kuk kup kur kus kuu ob- obb obg obk obo obp obr obs obu ogg ogo ogp ogs okb okg okk oko okp okr oks oku oo- oob oog ook ooo oop oor oos op- opb opg opk opo opp opr ops or- orb org ork oro orp orr ors oru os- osb osg osk oso osp osr oss osu ou- ouk ouo oup our ous p-p pbb pbg pbk pbo pbp pbr pbs pbu pgb pgg pgk pgo pgp pgr pgs pkb pkg pko pkp pkr pks pku pob pog pok poo pop por pos pou ppb ppg ppk ppo ppp ppr pps ppu prb prg prk pro prp prr prs pru ps- psb psg psk pso psp psr pss psu pub pug puk pup pur pus puu rbb rbg rbk rbo rbp rbr rbs rbu rgb rgg rgk rgo rgp rgr rgs rkb rkg rkk rko rkp rks rku rob rog rok roo rop ror ros rou rpb rpg rpk rpo rpp rpr rps rpu rrb rrg rrk rrp rrr rrs rru rsb rsg rsk rso rsp rsr rss rsu rub rug ruk ruo rup rur rus ruu sbb sbg sbk sbo sbp sbr sbs sbu sgb sgg sgk sgo sgp sgr sgs sgu sk- skb skg skk sko skp skr sks sku sob sog sok soo sop sor sos sou spb spg spk spo spp spr sps spu sr- srb srg srk sro srp srr srs ss- ssb ssg ssk sso ssp ssr sss ssu sub sug suk suo sup sur sus suu ubb ubg ubk ubo ubp ubr ubs ubu ugb ugg ugk ugo ugp ugr ugs ugu ukb ukk ukp ukr uku uob uog uok uoo uop uor uos up- upb upg upk upo upp upr ups upu ur- urb urg urk uro urp urr urs uru usb usg usk uso usp usr uss usu uug uur uus uuu

-ous bbbb bbbs bbpr bbrg bggs bkpg bkpr bksp bobb bobo bobs bobu bogg bogo bogs boko boks boku boob boog book boop boor boos bopp bops bor- borg bork boro borr bors boru bosk boso boss bosu bouk boup bour bous bpsu brkb brob brog brok broo bror bros brou brrr brrs brsb brsr brug brup brus bsgs bsos bspp bspr bsup bubb bubo bubs bubu bugg bugo bugs bukk buko buku bups bur- burb burg burk buro burp burr burs buru busk buss busu buus gbbo gbbs gggg ggpo ggss gkrp gobo gobs gogo gogs goku goog gook goop goor goos gopo gops gopu gorb gorg goro gorp gorr gors goso goss gosu gou- goug gouk goup gour gous gpgp gpos gprp gprs gpsg gpso gpss grbr grob grog grok groo grop gror gros grou grps grrr grrs grss grub grug grur grus gskb gsos gsur gubb gubs gubu gugb gugg gugu guos gups gurb gurg gurk guro gurr gurs guru gusb guss guus k-os kbbb kbbg kbbk kbbo kbbr kbbs kbbu kbgb kbgg kbgo kbgr kbkb kbkg kbkk kbko kbkr kbob kbok kboo kbos kbpg kbpk kbpo kbpr kbps kbpu kbrb kbrg kbrk kbro kbru kbsb kbsg kbsk kbso kbsr kbss kbsu kbub kbuk kbup kbur kbus kbuu kgbb kgbr kggg kggo kggr kgks kgor kgos kgou kgpg kgpr kgrb kgrg kgrk kgro kgrr kgrs kgso kgsp kgsr kgus kkbb kkbg kkbo kkbr kkbs kkgb kkgo kkgr kkkk kkob kkoo kkor kkpk kkps kkrb kkrk kkro kkrr kkrs kksp kksr kkss kksu kkup kkus kkuu kobb kobk kobo kobr kobs kobu kogb kogg kogo kogu kokb kokk koko kokp kokr koks koku koob koog kook kooo koop koor koos koou kopb kopp kopr kops kopu korb korg kork koro korr kors koru kos- kosb kosg koso kosp kosr koss kosu koub kour kous kouu kpbb kpbg kpbr kpbs kpgb kpgg kpgr kpgs kpkk kpkr kpob kpok kpoo kpop kpou kppk kppo kppp kppr kprb kprg kprk kpro kprp kprr kprs kpru kpso kpsp kpsu kpub kpug kpur kpus krbb krbg krbk krbr krgs krkk krko krkr krks krku krob krog krok kroo krop kror kros krpr krps krpu krrb krrg krrk krro krrr krrs krsk krsr krss krsu krug kruk krup krur ksbp ksbr ksbs ksgg ksgr ksgu kskb kskg kskk ksko kskr ksks ksku ksob ksok ksoo ksop ksor ksos ksou kspb kspg kspk kspo kspr ksps ksrb ksrg ksro ksrp ksrr ksrs ksso kssr ksss kssu ksub ksug ksup ksuu kubb kubo kubr kubs kubu kugb kugo kugr kugs kukk kuks kuku kuok kuoo kuop kuos kupb kupr kups kupu kurb kurk kuro kurr kurs kuru kusb kusg kuso kusp kusu kuub kuuk kuur kuuu obbo obkb obok obor obos obro obsr obss obus ogb ogog ogou ogpu ogro ogus okgo okko okok okor okpo okro okso okur okus ooku oooo ooos oops oous opkg opo- opor opos oppo opps opsu opus orbb orbo orbs orbu orgo orgs orko oro- orok oror oros orps orro orrs orsk orso orsu orub orup orus osbp osku osoo osor osos