-ene -one bbbb bbdd bbdo bbeb bbfn bd-r bebb bebe bebo bede bedo beeb beed beef been beer befe beff befo bend bene benn beno beo- beod beof beon beor berd bere bern bero berr bner bnor bnrr bobb bobe bobo bodb bode bodo boee boef boen boeo boer bofd bofe boff bond bone bonn bono boob bood booe boof boon boor bor- bord bore borf born boro borr brdo breb bred bree bref bren breo brer brno brob brod broe bron broo bror brrr d-bo dbfo dbrn dddd ddre debe dedd dede dedo deeb deed deef deen deer defe deff defn defo dene denn deno deon deor der- derb dere derf dern dero derr dfer dfoe dfrf dner dobb dobe dod- dodd dode dodo doen doer doff dond done donn dono donr doob dood doof doon door dord dore dorf dorn doro dorr dred dree dref dren drno drob drod drof dron ebbo ebbr ebed eben eber ebno eboe ebon eboo ebor ebro edde eddo ede- eden eder edno edod edon edrn eede eeee eefe eefn eend eero efbr efen efeo efon efor enb- enbn enbr end- ende endo ened enee eneo ener enfb enne eno- enoe enon eode eone eore erbb erbe erde erdf ereb ered eren erer erne erno erob erod eroe eron eroo erre erro febo fede fedn feeb feed feen feer fefe feff fefo fend fene fenn feod feof feon ferb ferd fere fern fero ferr ffee ffff ffrr fndd fndn fndr fode foed foer fofo fond fone fono food foof foon for- forb ford fore forn foro forr fred free fren freo frob froe fron nbbo nber nddb ndde nddo nder ndor ndre ndrf nebb nebe nebn nebo nebr nedd nede nedo neeb need neef neen neer nefd nefe neff nend nene neno neo- neod neon neoo nerd nere nerf nero nerr nfer nfff nfon nndb nnnn nobo node nodo noed noer non- none nonn nono noo- noob noon nooo noor nor- norb nord nore norf norn noro norr nren nron nrrd o-eo obbo obed oben ober oboe obon obor obre obro odbo oddd oded oden odeo oder odnb odon odoo odor oedn oedo oen- oeno oere ofdr ofen ofer off- offe offo offr ofno ofor ofre onde ondo one- oneb oned onee oneo oner onne onno onod onon onor oobe ooer ooff oone oooo oord oore orbb orbe orbo orde ordn ordo ore- oreb ored oren oreo orer orfe orff orne orno oro- oroe orof oron oror orro rbbb rbbr rder rebb rebe rebo redd rede redo redr reeb reed reef reen refd refe reff refn refr rend rene renn reno reod reof rerd rere rero rfef rnbr rndf rnod rob- robb robe robo rodd rode rodo roed roen roer rofe roff rofo rond rone rono roob rood roof roon roor rore roro rred rrrr