-ana aaaa aaac aaaf aaan aaar aaca aacc aacf aacn aaco aacr aafa aafc aaff aana aaon aaoo aara aarc aaro acaa acac acan acar acca accc accf acco acfc acoa acon acor acr- acra acrc acro acrr afaa afan afao afar afca afcc affa affc affo afoa afoo afor afr- afra afrc afro ana- anaa anac anan anao anar anca ancc anco anfa anfo anna anno ano- anoa anon anor anrc aoca aono aora aorn arac araf aran arar arc- arca arco arfa arfc arff arna arno aroa aron aroo aror arr- arra arrc arro arrr caaa caac caaf caan cac- caca cacc caco cacr cafa cafc caff cana canc cann cano caor cara carc carf carn caro carr ccaa ccac ccaf ccar ccca cccc cccf ccfa ccfc ccff ccna ccnc ccnf ccnr ccoc ccra ccrc ccrf cfaa cfac cfao cfar cfca cfcf cfcn cfco cffr cfnr cfoa cfor cfra cfrn cnaa cnac cnco cnfa cnna cnrc cnrr coan coca coco cofc coff con- cona conc conf conn cono coof coon cor- cora corc corf corn coro corr crac craf cran crar crca crcc crcr crfc crna croc cron croo cror faaa faac faan faca facc fafa fafc faff fafo fana fanc fano faon fara farc faro farr fcar fcca fccf fcra ffar ffcc ffff ffrr fnac fnar foaf foan foar foca foco fofo fono foof foon for- fora forn foro forr frac fran frcc frcn frfc fron naaa naac naan naar naca nacc nacf naco nafa nafc naff nafo nan- nana nann nano naoc naor nara narc narf narn naro narr ncaa ncac ncar ncca nccc nccf nccn nccr ncfc ncna ncnc ncoa ncoc ncor ncra ncrc nfaa nfff nfon nfra nnnn noaa noac noco non- nona nonn nono noo- noon nooo noor nor- nora norc norf norn noro norr nrca nrfc nrna nroc nron nrrc oafc oafo oara ocac ocan occa occc occn ocfa ocna ocon ocra ocro ocrr ofan ofcr off- offa offc offo offr ofna ofno ofor ofra onan onar onc- onca oncf onco onna onno onon onor onra ooaa oocr ooff oona oooo oora orac oran orao orar orca orco orff orna ornc orno oro- orof oron oror orra orro raaf raan rac- raca racc raco rafa rafc raff rana ranc rann rano raoc rara rarf raro rcac rcaf rccc rcfc rcnr rcon rffc rnaf rnco roaf roan roar roca rocc roco rofc roff rofo rona ronc rono roof roon roor rora rorc roro rrfc rrna rrrr