bbbb bbbs bbci bblb bbls bcbc bcbs bccc bcci bccl bccs bcis bcos bcsc bcsl bcss bibb bibi bibl bibo bibs bicc bici bico bics biis bili bill bilo bils bio- bioc bioi biol bios bis- bisc bisl biso biss blic blio blis blls blob bloc bloo blss bobb bobi bobo bobs boco bocs boi- boii boil bois boli boll bolo bols boob booc bool boos bosc bosi boso boss bsci bscs bsic bslc bsos bssc c-bo cbbc cbbs cbcc cbcl cbcs 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 cili cill cilo cils ciob cios cis- cisc cisl ciss clib clic clii clio clis clob cloo clos clsc cobb cobi cobo cobs coco coil cois col- colb coli coll colo cols coob cool coos cosc cosi cosl coso coss cscb cscc csci cscl csco cscs csib csio csis csob csos ibcs ibis ibos ibss icbc icbs iccb iccc icci iccl icco iccs icis icll icoc icos icsb icsc icsi icss iiii iiio iiis iioi iioo iios iisc iisi ilbc ilic ilio ilis ill- illi illo ills iloc iloo ilos iobi ioci ioii ioio iolo iooi iooo ioos ioso isbl iscc isci isco iscs isic isil isis isls iso- isoc isol isos issc issi isso isss lbcc lbos lbsc lcbc lccc lccs lcis lcls lcsc libc libo libs lico lics liii liis lilb lili lill lilo lils lio- lios lisi liso liss llbs llcc llcs lllc llll lloc lloo lob- lobb lobi lobo lobs locc loci loco locs loic lois loli loll lolo lols loob looc lool loos losc losi loso loss lscb lsco lscs lsso obbo obis obls oboi obol obos obss ocbc occc occi ocis oclc ocos oici oiii oils oios oisc olbo olcc olib olic olio olis olli ollo olos olsi oobi oolo oooo ooos oosi oscc osci oscl osco osii osis osli oslo osoi osoo osos ossb ossi osso s-ib s-ic s-ii s-os sbbs sbcc sbcs sbic sbsi scbi sccc sccl sccs sci- scic scil scio scis scl- sclc scls scob scol scoo scsc scsi scsl scso sibc sibi sibo sibs sicc sici sico sics sil- silc sili sill silo sils siol sios sisc sisi siss sl-i slcc slib slic slob sloc sloo slos slsc sobo sobs soci socl soco socs soic soil sois soli soll solo sols sool soos sosi soso soss sscc ssci sscs ssis sslc ssoc sssb sssc sssi ssss