bbb bbi bbk bbo bbr bbs bi- bib bii bik bio bir bis biz bkb bkk bko bkr bks bob boi bok boo bor bos boz brb bri brk bro brr brs brz bsb bsi bsk bso bsr bss bzo bzr bzs bzz ibb ibi ibk ibo ibr ibs ibz iib iii iio iir iis ikb iki ikk iko ikr iks io- iob ioi ioo ior ios ir- irb iri irk iro irr irs is- isb isi isk iso isr iss izi izo izz k-z kbb kbi kbk kbo kbr kbs kbz kib kii kik kio kir kis kiz kkb kki kkk kkr kks kob koi kok koo kor kos koz kri krk kro krr krs ksb ksi ksk kso ksr kss kzo o-i ob- obb obi obk obo obr obs oib oii oik oio oir ois oiz okb oki okk oko okr oks oo- oob ooi ook ooo oor oos or- orb ori ork oro orr ors orz os- osb osi osk oso osr oss ozo ozs ozz rbb rbi rbk rbo rbr rbs rib rii rik rio rir ris riz rkb rkk rko rks rkz rob roi rok roo ror ros roz rrb rri rrk rrr rrs rsb rsi rsk rso rsr rss rzb rzo sbb sbi sbk sbo sbr sbs sib sii sik sio sir sis sk- skb ski skk sko skr sks sob soi sok soo sor sos soz sr- srb sri srk sro srr srs ss- ssb ssi ssk sso ssr sss ssz szi szr zbb zbr zbs zib zik zio zir zis ziz zks zo- zob zoi zok zoo zor zos zro zrs zsi zsz zzr zzs zzz

bbbb bbbs bibb bibi bibo bibs biis biko bio- bioi bios birb biri birk biro birr birs bis- bisk biso biss bizz bobb bobi bobo bobs boi- boii bois boki boko boks boob book boor boos booz bor- bori bork boro borr bors borz bosi bosk boso boss bozi bozo brik brio bris briz brkb brob brok broo bror bros broz brrr brrs brsb brsr bsos bzrk bzzz ibis ibos ibri ibro ibss iiii iiio iiis iioi iioo iios iirs iisi iisr ikki ikko ikoo ikri iobi ioii ioio ioko iooi iooo ioos iori iors ioso iri- irio iris irki irks irob irri irrs isis isko iso- isok isor isos isri issi isso issr isss izki izso izzo k-os kbbb kbbi kbbk kbbo kbbr kbbs kbbz kbib kbik kbio kbis kbiz kbkb kbkk kbko kbkr kbkz kbob kboi kbok kboo kbos kboz kbrb kbri kbrk kbro kbrz kbsb kbsi kbsk kbso kbsr kbss kbsz kbzi kbzo kbzs kbzz kibb kibi kibo kibr kibs kibz kiii kiik kiis kiki kikk kiko kikr kikz kioi kiok kioo kioz kirb kiri kirk kiro kirr kirs kisi kisk kiso kisr kiss kizs kizz kkbb kkbi kkbo kkbr kkbs kkbz kkik kkkk kkob kkoo kkor kkoz kkrb kkrk kkro kkrr kkrs kkrz kksi kksr kkss kkzz kobb kobi kobk kobo kobr kobs koii koir kokb koki kokk koko kokr koks kokz koob kooi kook kooo koor koos kooz korb kori kork koro korr kors kos- kosb kosi koso kosr koss kosz kozb kozi kozk kozo kozr krbb krbi krbk krbr krbz krib krik krio kris kriz krki krkk krko krkr krks krkz krob kroi krok kroo kror kros kroz krrb krri krrk krro krrr krrs krrz krsk krsr krss krzi krzk krzr krzs krzz ksbi ksbr ksbs ksbz ksib ksii ksik ksir ksis ksiz kskb kskk ksko kskr ksks kskz ksob ksoi ksok ksoo ksor ksos ksrb ksro ksrr ksrs ksrz kssi ksso kssr ksss kssz kszr kzbb kzbi kzbk kzbr kzbs kzbz kzio kziz kzkr kzks kzkz kzoi kzoo kzor kzoz kzrb kzrk kzro kzrr kzrs kzrz kzsb kzzb kzzi kzzk kzzo kzzr kzzs kzzz obbo obis obkb oboi obok obor obos obri obro obsr obss oiii oiko oiks oios okir okko okok okor okro oksi okso oobi oooo ooos oosi oozi orbb orbi orbo orbs ori- orio oris orko oro- orok oror oros oroz orri orro orrs orsi orsk orso orzk orzo osii osik osis oski osoi osoo osor osos osro ossb ossi osso rbbb rbbr rbbs rbis rbss rib- ribo ribs riis riki rikk rios rioz riri rirs risi risk riso riss rizi rizk rizz rkos rkss rob- robb robi robo robs roik roio roir rois roiz roki rokk roko rokr roks roob rooi rook roor roos rooz rori rork roro rosi roso ross rozi rozz rrrr rsbi rsis rsos s-ib s-ii s-os sbbs sbor sbrk sbsi sibi sibo sibs siik siki siko sikr siks sior sios siri sirk siro sirr sirs sisi sisk siss sizz skik skio skir skis skor skss sobo sobr sobs soik soir sois soki sokk soko sook soor soos sorb sori soro sorr sors sosi soso soss soz- sozi srib sris sros ssbr ssis ssri ssrs sssb sssi ssss szis szob szss z-ro zbik zibo ziki zikr ziks ziri ziro zisi zisk zizi zizz zobo zoio zois zoo- zook zoos zorb zori zork zoro zors zoso zoss zozo zsss zzzs zzzz

b-r-k bbook bibbo bibbs bibio bibis bibos bibri biisk bikok bioko bioss birks biros birrs birsk bisko bisks bizzi bizzo bo-bo bobbi bobik bobko bobok bobos bobr bobri boios boiro bokko bokok bokor boobs booki booko books bookz boors borbo borik borio boris borko borks boro- borok boroo boros borro borsi borsk bosio bosko bosks bosor bossi bossk bosso bozok bozoo bozos brisb brisi brisk briss brizo brizz brobo brobs brook broos bross brrrr ibibo ibook ibrik ibros iiiii iikss iiris iisir ikiss ikobo ikoro ikosi iksir ioooi ioooo iorio irbis iriki irios iris- iriss irobo iroko irori irssi is-is isios isiro isisi isoko isrib issor izori izrok k-rob kibbi kibbo kibi- kibor kibos kiiki kikis kikki kikko kikoi kikos kioko kiosk kiris kirki kirks kiros kirsi kisii kisir kisko kisos kiss- kissi ko-ko kobos kobri koiri koisi kokir kokis kokki kokko kokoi kokor kokos koksi kooki kooks koori korbo korki koror koros korri korro korsi korso kosik kosir kosis koski kosor