-ana -vac aaaa aaac aaan aaas aaav aaca aacc aacn aaco aacs aacv aana aaon aaoo aasa aasc aass aava acaa acac acan acas acca accc acco accs acoa acon acos acsa acsc acss acvs acvv ana- anaa anac anan anao anas anca ancc anco anna anno anns ano- anoa anon anos ansa anso aoca aocs aono aoss asaa asac asan asao asas asc- asca ascc asco asnc asno asoc ason asos assa assc assn asso asss asva asvs avan avao avas avcc avco avon avos avva avvo caaa caac caan caas cac- caca cacc caco cana canc cann cano cans caos casa casc caso cass cava cavo cavs ccaa ccac ccas ccca cccc cccs cccv ccna ccnc ccns ccoc ccsa ccsn ccss ccvo ccvs cnaa cnac cnas cnco cnna cnsa cnss coan coas coca coco con- cona conc conn cono cons conv coon coos cosa cosc coso coss cova covo csaa csac csao csas csav cscc csco cscs csos cssa cvac cvas cvca cvcc cvss naaa naac naan naas naca nacc naco nacs nan- nana nann nano nans naoc naos nas- nasa nasc naso nass nasv nava navo navs navv ncaa ncac ncca nccc nccn nccs ncna ncnc ncoa ncoc ncos ncsa ncsc ncss ncvs nnnn nnos nnsa nnss noaa noac noco nocs non- nona nonn nono nons noo- noon nooo noos noov nos- nosa noss nov- nova novo nsaa nsac nsca nscc nscs nsna nsos nssa nssc nsso nsss nvcc nvcs nvss oasc oass oavs ocac ocan ocas occa occc occn ocna ocon ocos ocsa onan onas onc- onca onco onna onno onon onos onsc onso ooaa oona oons oooo ooos oosa osan osas osca oscc osco osno osoo osos osov ossa osso ovan ovcs ovo- ovon ovoo s-os sa-c saac saan saas saca sacc sacn saco sacs sana sann sano sans saon saos sasa sasc saso sass sava savo savs scaa scac scan scas sccc sccs scna scon scoo scsa scsc scsn scso snas snav snca sncc snco snns snoa snoc snoo snos snov soan soas soca soco socs son- sona sono sons soon soos sosa soso soss sosv sova sovo sovs ssaa ssac ssan ssao ssas ssca sscc sscs ssns ssoc sssa sssc ssss svan svcc svcs svns svsc vaan vaas vaca vaco vacs vana vanc vann vano vans vas- vasa vaso vass vava vavs vcon vnav vnso voca vona vonn vons vooc vosa voso voss vsan vssc vvvv