-ic -ol bbb bbc bbi bbk bbl bbo bbs bcb bcc bci bck bcl bco bcs bi- bib bic bii bik bil bio bis bkb bkc bkk bkl bko bks blb blc bli blk bll blo bls bob boc boi bok bol boo bos bsb bsc bsi bsk bsl bso bss c-- cbb cbc cbi cbk cbl cbo cbs ccb ccc cci cck ccl cco ccs ci- cib cic cii cik cil cio cis ckb ckc cki cko cks cl- clb clc cli clk cll clo cls co- cob coc coi cok col coo cos csb csc csi csk csl cso css ibb ibc ibi ibk ibl ibo ibs icb icc ici ick icl ico ics iib iic iii iil iio iis ikb ikc iki ikk ikl iko iks il- ilb ilc ili ilk ill ilo ils io- iob ioc ioi iol ioo ios is- isb isc isi isk isl iso iss kbb kbc kbi kbk kbl kbo kbs kcb kcc kci kck kcl kcs kib kic kii kik kil kio kis kkb kkc kki kkk kkl kks kl- klb klc kli klo kls kob koc koi kok kol koo kos ksb ksc ksi ksk ksl kso kss lbb lbc lbi lbk lbl lbo lbs lcb lcc lci lck lcl lco lcs lib lic lii lik lil lio lis lkb lkl lks llb llc lli llk lll llo lls lob loc loi lok lol loo los lsb lsc lsi lsk lsl lso lss o-i ob- obb obc obi obk obl obo obs oc- ocb occ oci ock ocl oco ocs oib oic oii oik oil oio ois okb okc oki okk okl oko oks olb olc oli olk oll olo ols oo- oob ooc ooi ook ool ooo oos os- osb osc osi osk osl oso oss sbb sbc sbi sbk sbl sbo sbs scb scc sci sck scl sco scs sib sic sii sik sil sio sis sk- skb skc ski skk skl sko sks slb slc sli slk sll slo sls sob soc soi sok sol soo sos ss- ssb ssc ssi ssk ssl sso sss

bbbb bbbs bbci bblb bbls bcbc bcbs bccc bcci bccl bccs bcis bcos bcsc bcsl bcss bibb bibi bibl bibo bibs bicc bici bick bico bics biis biko bili bilk bill bilo bils bio- bioc bioi biol bios bis- bisc bisk bisl biso biss blic blik blio blis blkb blls blob bloc blok bloo blss bobb bobi bobo bobs bock boco bocs boi- boii boil bois boki boko boks boli bolk boll bolo bols boob booc book bool boos bosc bosi bosk boso boss bsci bscs bsic bslc bsos bssc c-bo cbbc cbbs cbcc cbcl cbcs cbkl cbko cblb cblc cbol cbsc cbsi ccbc cccb cccc ccci cccl cccs ccic ccii ccil ccis cclc ccli ccls ccob ccoc ccsi ccsl ccss cibc cibi cibo cicc cici cico cics ciii ciis ciko cili cilk cill cilo cils ciob cios cis- cisc cisk cisl ciss ckbc ckbi ckck ckcl ckco ckcs ckob ckoc ckoi ckoo ckos cksb cksl ckso clib clic clii clik clio clis clob clok cloo clos clsc cobb cobi cobo cobs cock coco coil cois cok- coko col- colb coli colk coll colo cols coob cook cool coos cosc cosi cosl coso coss cscb cscc csci cscl csco cscs csib csik csio csis csks csob csos ibcs ibis ibos ibss icbc icbs iccb iccc icci iccl icco iccs icis icks icll icoc icos icsb icsc icsi icss iiii iiio iiis iioi iioo iios iisc iisi ikki ikko ikoo ilbc ilic ilio ilis ilki ilks ill- illi illo ills iloc ilok iloo ilos iobi ioci ioii ioio ioko iolo iooi iooo ioos ioso isbl iscc isci isco iscs isic isil isis isko isls iso- isoc isok isol isos issc issi isso isss k-ci k-lo k-os kbbb kbbc kbbi kbbk kbbl kbbo kbbs kbcb kbci kbck kbcl kbco kbcs kbib kbic kbik kbil kbio kbis kbkb kbkk kbkl kbko kblb kbll kblo kbls kbob kboc kboi kbok kboo kbos kbsb kbsi kbsk kbso kbss kcbc kcbi kcbk kcbl kcbs kccb kccc kcci kcck kccl kcic kcii kcil kcis kckc kckk kckl kcko kclc kcli kclk kcll kcls kcob kcol kcos kcsb kcsc kcsi kcss kibb kibc kibi kibl kibo kibs kicb kicc kick kicl kics kiic kiii kiik kiis kikc kiki kikk kiko kilb kili kilk kill kilo kioc kioi kiok kiol kioo kisc kisi kisk kisl kiso kiss kkbb kkbi kkbl kkbo kkbs kkcb kkci kkck kkcl kkco kkcs kkic kkik kkkk kklb kklc kkli kkll kklo kkls kkob kkol kkoo kksi kkss klbb klbc klbl klbs klcb klcc klci klck klcl klcs klib klic klik klil klio klis klkc klkk klkl klko klks kllb kllc kllk klls klob kloc klok klol kloo klos klsc klsi kobb kobc kobi kobk kobo kobs kocb koci kock kocs koii koil kokb kokc koki kokk koko koks kolb kolc koli kolk koll kolo kols koob kooc kooi kook kool kooo koos kos- kosb kosc kosi koso koss ksbc ksbi ksbl ksbs kscb ksci ksck kscl ksco kscs ksib ksii ksik ksil ksis kskb kskk ksko ksks kslb kslc ksli kslk ksll kslo ksob ksoc ksoi ksok ksol ksoo ksos kssi kssl ksso ksss lbcc lbos lbsc lcbc lccc lccs lcis lcls lcsc libc libo libs lick lico lics liii liis liko lilb lili lill lilo lils lio- lios lisi lisk liso liss llbs llcc llcs llks lllc llll lloc lloo lob- lobb lobi lobo lobs locc loci lock loco locs loic loik lois loki lokk loko loli loll lolo lols loob looc look lool loos losc losi loso loss lscb lsco lscs lsso obbo obis obkb obls oboi obok obol obos obss ocbc occc occi ocis ocks oclc ocos oici oick oiii oiko oiks oils oios oisc okic okko oklo okok okol oksi okso olbo olcc olib olic olio olis olki olli ollo olos olsi oobi oolo oooo ooos oosi oscc osci oscl osco osii osik osis oski osli oslo osoi osoo osos ossb ossi