bbbb bbbs bbdd bbdo bcbc bcbs bccc bccs bcds bcos bcsc bcsn bcss bdbc bddc bdos bdsd bnoc bnss bobb bobo bobs boco bocs bodb bodo bods bonc bond bonn bono bons boob booc bood boon boos bosc bosn boso boss bsbd bscs bsnd bsns bsod bson bsos bssc bssd c-bo c-cd cbbc cbbs cbcc cbcn cbcs cbdb cbdc cbdn cbdo cbds cbnd cbsc cbsn ccbc ccbn cccb cccc cccs ccdc ccdn ccds ccnb ccnc ccns ccob ccoc ccod ccsd ccsn ccss cdcs cddb cdnb cdnc cdon cdos cdss cnbc cnco cndd cnss cobb cobo cobs coco codd cods con- conc cond conn cono cons coob cood coon coos cosc coso coss cscb cscc cscd csco cscs csdb csdn csob csos cssd d-bo dbcc dbcs dbos dbss dcbc dccb dccc dccs dcdb dcds dcns dcon dcos dcsc dcss dddd ddoc ddss dncs dnoc dnsc dobb dobs doco docs dod- dodd dodo dods donc dond donn dono dons doob dood doon doos doso doss dsbc dscc dscn dscs dsos dssc dssn nbbc nbbo nbcc nbco nbcs ncbc ncbs nccc nccn nccs ncdc ncdn ncds ncnc ncnd ncoc ncos ncsc ncss ndcc ndcs nddb nddo ndoc ndos ndss nndb nnnn nnos nnss nobc nobo nobs noco nocs nodo nods non- nonn nono nons noo- noob noon nooo noos nos- noss nsbo nscc nscd nscs nsds nsos nssb nssc nsso nsss obbo obon obos obsd obsn obss ocbc occc occn ocds ocon ocos odbo oddd odds odnb odon odoo odos odso onc- oncd onco ondo onno onod onon onos onsc onso oons oooo ooos oscc osco osno osoo osos ossb ossd osso s-os sbbs sbcc sbcs sbds sbsd sccc sccs scdc scds scnd scob scon scoo scsc scsd scsn scso sdcc sdco sddc sdds sdsc sdss sncc snco snns snob snoc snod snoo snos snsd sobo sobs soco socs sodd sodo sods son- sond sono sons sood soon soos soso soss ssbn sscc sscs ssdc ssdd ssns ssoc sssb sssc ssss