bbbb bbbs bbrg bggs bibb bibi bibo bibs bigb bigg bigo bigs biis biko bio- biog bioi bios birb birg biri birk biro birr birs bis- bisk biso biss bivi bobb bobi bobo bobs bogg bogi bogo bogs boi- boii bois boki boko boks boob boog book boor boos bor- borg bori bork boro borr bors bosi bosk boso boss bovi bovo brig brik brio bris brkb brob brog brok broo bror bros brrr brrs brsb brsr brvi bsgs bsos gbbo gbbs gggg ggss gibb gibs gigg gigi gigo gigs giis giog gioi girg giri girk giro girr girs giss gobi gobo gobs gogi gogo gogs gois goog gooi gook goor goos gorb gorg gori goro gorr gors gosi goso goss govi govs grbr grib grig gris grob grog groi grok groo gror gros grov grrr grrs grss gsis gskb gsos gvvv i-go ibis ibos ibri ibro ibss igbo iggs igis igoo igor igri igso iiii iiio iiis iioi iioo iios iirs iisi iisr ikig ikki ikko ikoo ikri iobi ioii ioio ioko iooi iooo ioos iorg iori iors ioso irgs iri- irig irio iris irki irks irob irov irri irrs irsg irvs isis isko iso- isok isor isos isrg isri issi isso issr isss ivbv ivig ivor ivrs k-os kbbb kbbg kbbi kbbk kbbo kbbr kbbs kbgb kbgg kbgo kbgr kbib kbig kbik kbio kbis kbkb kbkg kbkk kbko kbkr kbkv kbob kboi kbok kboo kbos kbov kbrb kbrg kbri kbrk kbro kbrv kbsb kbsg kbsi kbsk kbso kbsr kbss kbsv kbvb kbvo kbvr kgbb kgbr kggg kggi kggo kggr kgio kgir kgks kgor kgos kgrb kgrg kgri kgrk kgro kgrr kgrs kgrv kgso kgsr kgvo kibb kibg kibi kibo kibr kibs kigo kigs kiii kiik kiis kiki kikk kiko kikr kioi kiok kioo kirb kiri kirk kiro kirr kirs kirv kisi kisk kiso kisr kiss kisv kivi kkbb kkbg kkbi kkbo kkbr kkbs kkgb kkgo kkgr kkik kkkk kkob kkoo kkor kkov kkrb kkrk kkro kkrr kkrs kkrv kksi kksr kkss kkvr kkvv kobb kobi kobk kobo kobr kobs kogb kogg kogi kogo koii koir koiv kokb koki kokk koko kokr koks koob koog kooi kook kooo koor koos koov korb korg kori kork koro korr kors korv kos- kosb kosg kosi koso kosr koss kovi kovk kovo kovr krbb krbg krbi krbk krbr krgi krgs krib krik krio kris kriv krki krkk krko krkr krks krkv krob krog kroi krok kroo kror kros krov krrb krrg krri krrk krro krrr krrs krsk krsr krss krsv krvb krvg krvi krvk krvo krvr krvs krvv ksbi ksbr ksbs ksbv ksgg ksgr ksgv ksib ksig ksii ksik ksir ksis ksiv kskb kskg kskk ksko kskr ksks ksob ksoi ksok ksoo ksor ksos ksrb ksrg ksro ksrr ksrs ksrv kssi ksso kssr ksss ksvg ksvi ksvr kvbr kvgb kvgo kvgs kvik kvir kvis kviv kvob kvog kvoi kvok kvoo kvor kvov kvrg kvri kvro kvrr kvrv kvsi kvso kvsr kvss kvsv kvvr kvvs kvvv obbo obis obkb oboi obok obor obos obri obro obsr obss obvi obvs ogb oggi ogog ogoi ogri ogro ogsi oigo oiii oiko oiks oios okgo okir okko okok okor okro oksi okso oobi oooo ooos oosi orbb orbi orbo orbs orgo orgs ori- orig orio oris orko oro- orok oror oros orri orro orrs orsi orsk orso orvr orvs osgi osii osik osis oski osoi osoo osor osos osov osro ossb ossi osso ovi- ovis ovo- ovoo rbbb rbbr rbbs rbis rbss rgbi rib- ribo ribs rigg rigi rigo rigs riis riki rikk rios riri rirs risi risk riso riss rivo rivs rkos rkss rksv rob- robb robi robo robs rogg rogi rogo roig roik roio roir rois roki rokk roko rokr roks roob roog rooi rook roor roos rori rork roro rosi roso ross rovi rovo rovs rrrr rsbi rsgb rsis rsos rvik s-ib s-ii s-iv s-os sbbs sbig sbor sbrk sbsi sggg sggs sgio sgro sgss sgsv sibi sibo sibs sigg sigi sigo sigs siik siki siko sikr siks sior sios siri sirk siro sirr sirs sisi sisk siss sivi skig skik skio skir skis skiv skog skor skov skss sobo sobr sobs sogi sogo sogs soik soir sois soki sokk soko soog sook soor soos sorb sorg sori soro sorr sors sosi soso soss sosv sovo sovs srgb srib sris sros ssbr ssgs ssis ssrg ssri ssrs sssb sssi ssss svir svor svrg vbrg vibs vigo vigr vigs viii viik viki viko vios virb virg viri virk viro virr visi visk viso viss vivi vivo vkor voio voir vois voks voog voor vor- vori voro vors vosi voso voss vovk vrio vris vrsi vvob vvog vvsb vvvv