-ana -vac aaaa aaac aaan aaas aaav aaca aacc aacn aacs aacv aana aasa aasc aass aava acaa acac acan acas acca accc accs acsa acsc acss acvs acvv ana- anaa anac anan anas anca ancc anna anns ansa asaa asac asan asas asc- asca ascc asnc assa assc assn asss asva asvs avan avas avcc avva caaa caac caan caas cac- caca cacc cana canc cann cans casa casc cass cava cavs ccaa ccac ccas ccca cccc cccs cccv ccna ccnc ccns ccsa ccsn ccss ccvs cnaa cnac cnas cnna cnsa cnss csaa csac csas csav cscc cscs cssa cvac cvas cvca cvcc cvss naaa naac naan naas naca nacc nacs nan- nana nann nans nas- nasa nasc nass nasv nava navs navv ncaa ncac ncca nccc nccn nccs ncna ncnc ncsa ncsc ncss ncvs nnnn nnsa nnss nsaa nsac nsca nscc nscs nsna nssa nssc nsss nvcc nvcs nvss sa-c saac saan saas saca sacc sacn sacs sana sann sans sasa sasc sass sava savs scaa scac scan scas sccc sccs scna scsa scsc scsn snas snav snca sncc snns ssaa ssac ssan ssas ssca sscc sscs ssns sssa sssc ssss svan svcc svcs svns svsc vaan vaas vaca vacs vana vanc vann vans vas- vasa vass vava vavs vnav vsan vssc vvvv