bbbb bbbs bblb bbls bbpr bkpr bksp blkb blls blob blok bloo blop blsp blss bobb bobo bobs boko boks bolk boll bolo bols boob book bool boop boor boos bopp bops bor- bork boro borr bors bosk boso boss brkb brlp brls brob brok brol broo bror bros brrr brrs brsb brsr bsos bspp bspr k-lo k-os kbbb kbbk kbbl kbbo kbbr kbbs kbkb kbkk kbkl kbko kbkr kblb kbll kblo kblp kblr kbls kbob kbok kboo kbos kbpk kbpo kbpr kbps kbrb kbrk kbrl kbro kbsb kbsk kbso kbsr kbss kkbb kkbl kkbo kkbr kkbs kkkk kklb kkll kklo kkls kkob kkol kkoo kkor kkpk kkpl kkps kkrb kkrk kkrl kkro kkrr kkrs kksp kksr kkss klbb klbl klbs klkk klkl klko klkr klks kllb kllk kllp klls klob klok klol kloo klop klor klos klpr klrk klrr klrs klsr kobb kobk kobo kobr kobs kokb kokk koko kokp kokr koks kolb kolk koll kolo kolr kols koob kook kool kooo koop koor koos kopb kopp kopr kops korb kork korl koro korr kors kos- kosb koso kosp kosr koss kpbb kpbl kpbr kpbs kpkk kpkl kpkr kplk kplo kplr kpob kpok kpol kpoo kpop kppk kppl kppo kppp kppr kprb kprk kprl kpro kprp kprr kprs kpso kpsp krbb krbk krbl krbr krkk krko krkr krks krob krok krol kroo krop kror kros krpl krpr krps krrb krrk krrl krro krrr krrs krsk krsl krsr krss ksbl ksbp ksbr ksbs kskb kskk ksko kskr ksks kslb kslk ksll kslo kslr ksob ksok ksol ksoo ksop ksor ksos kspb kspk kspl kspo kspr ksps ksrb ksro ksrp ksrr ksrs kssl ksso kssr ksss lblr lbos lbrs lkrs llbs llks llll lloo llps lob- lobb lobo lobs lokk loko loll lolo lols loob look lool loop loor loos lopp lops lork loro lors loso losp loss lppl lprp lpss lrps lrrr ls-r lspl lspr lsso lssp lssr obbo obkb obls obok obol obor obos obro obsr obss okko oklo okok okol okor okpo okro okso olbo ollo olor olos oolo oooo ooos oops opls opo- opor opos oppo opps orbb orbo orbs orko orlo oro- orok oror oros orps orro orrs orsk orso osbp oslo osoo osor osos osro ossb osso pbpk pbrs pbsp pklr plbr plkk plob plok ploo plop plos plpp plss pobo pobs poko polk poll polo pols pook pool poop poor poos pop- popo popp pops porb pork poro porr pors posb posk poso poss pplo ppos pppo pppp ppps ppss prbs prlr prls pro- prob prol proo prop pros prps prrs prsl prso prss psbr psol psos pspp pspr psps psrk psrp psso rbbb rbbr rbbs rbsl rbsp rbss rkos rkss rlls rob- robb robo robs rokk roko rokr roks rolk roll rolo rolp roob rook rool roop roor roos ropo rops rork roro roso rosp ross rpls rpob rpos rpps rrrr rrsp rslp rsos rspb rspk rspo rsps rssl s-os sbbs sbor sbrk sbsp skol skop skor skpo skss slbp sllp slob sloo slop slos slpp slps slrp slrs sobo sobp sobr sobs sokk soko solk soll solo solp solr sols sook sool soop soor soos sopo sopp sops sorb soro sorr sors soso soss spkl spkr splo splp splr spls spok spoo spop spor spos spps spro sprs spso spsp spss sros srps srsp ssbr sslp ssop sspl sspo ssps ssrl ssrs sssb ssss