bbbb bbbs bbci bcbc bcbg bcbs bccc bcci bccs bcgs bcis bcos bcsc bcss bggs bibb bibi bibo bibs bicc bicg bici bico bics bigb bigc bigg bigo bigs biis bio- bioc biog bioi bios bis- bisc biso biss bobb bobi bobo bobs boco bocs bogg bogi bogo bogs boi- boii bois boob booc boog boos bosc bosi boso boss bsci bscs bsgs bsic bsos bssc c-bo cbbc cbbs cbcc cbcs cbgb cbsc cbsi ccbc cccb cccc ccci cccs ccgc ccgs ccic ccii ccis ccob ccoc ccsg ccsi ccss cgcc cgcg cggs cgis cgsb cgss cibc cibi cibo cicc cici cico cics cigi cigs ciii ciis ciob cios cis- cisc ciss cobb cobi cobo cobs coco cogi cogo cogs cois coob coos cosc cosi coso coss cscb cscc csci csco cscs csib csio csis csob csos gbbo gbbs gc-c gcbc gccc gccs gcic gcii gcos gcss gggg ggss gibb gibs gigg gigi gigo gigs giis giog gioi giss gobi gobo gobs gogi gogo gogs gois goog gooi goos gosi goso goss gsis gsoc gsos i-go ibcs ibis ibos ibss icbc icbs iccb iccc icci icco iccs icgc icis icoc icos icsb icsc icsi icss igbc igbo igcc iggs igis igoo igso iiii iiio iiis iioi iioo iios iisc iisi iobi iocg ioci ioii ioio iooi iooo ioos ioso iscc isci isco iscs isgc isic isis iso- isoc isos issc issi isso isss obbo obis oboi obos obss ocbc occc occi ocis ocos ogb oggi ogog ogoi ogsi oici oigo oiii oios oisc oobi oooo ooos oosi oscc osci osco osgi osii osis osoi osoo osos ossb ossi osso s-ib s-ic s-ii s-os sbbs sbcc sbcs sbic sbig sbsi scbi sccc sccs scgs sci- scic scio scis scob scog scoo scsc scsi scso sgcb sgcg sggg sggs sgic sgio sgss sibc sibi sibo sibs sicc sici sico sics sigg sigi sigo sigs sios sisc sisi siss sobo sobs soci soco socs sogi sogo sogs soic sois soog soos sosi soso soss sscc ssci sscs ssgs ssis ssoc sssb sssc sssi ssss