-ism bbbb bbbs bibb bibi bibo bibs biis biko bimo bims bio- bioi bios birb biri birk biro birr birs bis- bisk biso biss bmir bmmi bobb bobi bobo bobs boi- boii boim bois boki boko boks bomb bomi boms boob book boom boor boos bor- bori bork borm boro borr bors bosi bosk bosm boso boss brik brim brio bris brkb brob brok brom broo bror bros brrm brrr brrs brsb brsr bsim bsms bsos bsrm bssm ibbm ibim ibis ibms ibos ibri ibro ibss iiii iiio iiis iioi iioo iios iirs iisi iism iisr ikki ikko ikmo ikom ikoo ikri imbi imir immi immo imms imok imri imro imrr imsi imsk imso imsr imss iobi ioii ioio ioko iomo iooi iooo ioos iori iors ioso irbm iri- irio iris irki irks irmo irms irob irri irrs isim isis isko ismi ismo isms iso- isok isor isos isri issi isso issr isss k-os kbbb kbbi kbbk kbbm kbbo kbbr kbbs kbib kbik kbim kbio kbis kbkb kbkk kbko kbkr kbmb kbmi kbmo kbmr kbms kbob kboi kbok kboo kbos kbrb kbri kbrk kbro kbsb kbsi kbsk kbsm kbso kbsr kbss kibb kibi kibo kibr kibs kiii kiik kiis kiki kikk kiko kikr kimb kimi kimm kimo kims kioi kiok kioo kirb kiri kirk kiro kirr kirs kisi kisk kism kiso kisr kiss kkbb kkbi kkbo kkbr kkbs kkik kkim kkkk kkmi kkmk kkmo kkmr kkms kkob kkoo kkor kkrb kkrk kkro kkrr kkrs kksi kksm kksr kkss kmbi kmbr kmbs kmis kmkk kmko kmks kmmk kmmm kmmo kmmr kmms kmob kmok kmom kmor kmrb kmri kmro kmrr kmrs kmsb kmsi kmso kmsr kmss kobb kobi kobk kobo kobr kobs koii koir kokb koki kokk koko kokr koks komb komi komo komr koms koob kooi kook kooo koor koos korb kori kork koro korr kors kos- kosb kosi koso kosr koss krbb krbi krbk krbm krbr krib krik krim krio kris krki krkk krko krkr krks krmb krmo krmr krms krob kroi krok krom kroo kror kros krrb krri krrk krrm krro krrr krrs krsk krsr krss ksbi ksbr ksbs ksib ksii ksik ksim ksir ksis kskb kskk ksko kskr ksks ksmb ksmm ksmo ksmr ksms ksob ksoi ksok ksom ksoo ksor ksos ksrb ksrm ksro ksrr ksrs kssi kssm ksso kssr ksss mbbs mbim mbio mbis mbms mbrs mibs miii miio miis miki mikk miko miks mim- mimi mimo mims mio- mios miri mirk miro mirr mirs mis- misi miso misr miss mkks mksm mmii mmis mmmm mmms mmor mobb mobi mobo mobs moii moio moir mois moki moko momi momo moms moob mook moor moos morb mori mork moro mors mosi mosk moso moss mrbb mrbm mrbs mris mrkr mrsi msmb msmm msms msor msrb mssi mssm mssr obbo obis obkb oboi obok obor obos obri obro obsr obss oiii oiko oiks oimb oios oism okir okko okmo okok okom okor okro oksi okso ombo omim omio omis omo- omoi omoo omor omri omro omsi omsk oobi ooms oooo ooos oosi orbb orbi orbo orbs ori- orio oris orko ormo oro- orok orom oror oros orri orro orrs orsi orsk orso osii osik osim osis oski osm- osmo osoi osoo osor osos osro ossb ossi osso rbbb rbbr rbbs rbis rbmk rbms rbss rib- ribo ribs riis riki rikk rimi rimm rimo rims riom rios riri rirs risi risk rism riso riss rkos rkss rmbs rob- robb robi robo robs roik roio roir rois roki rokk roko rokr roks romb romi romk romm romo roms roob rooi rook room roor roos rori rork roro rosi roso ross rrkm rrrr rsbi rsis rsos s-ib s-ii s-os sbbs sbor sbrk sbsi sibi sibo sibs siik siim siki siko sikr siks simi simm simo sims sior sios siri sirk siro sirr sirs sisi sisk siss skik skim skio skir skis skor skss smis smkb smki smok smos smrk smss sobo sobr sobs soik soim soir sois soki sokk soko somb somi somm somo sook soom soor soos sorb sori sorm soro sorr sors sosi soso soss srib srim sris sros ssbr ssis ssri ssrm ssrs sssb sssi sssm ssss