-vac aaaa aaac aaas aaav aaca aacc aaco aacs aacv aaoo aasa aasc aass aava acaa acac acas acca accc acco accs acoa acos acsa acsc acss acvs acvv aoca aocs aoss asaa asac asao asas asc- asca ascc asco asoc asos assa assc asso asss asva asvs avao avas avaz avcc avco avos avva avvo aza- azas azaz azca azo- azoo azos azov azsv azza azzo caaa caac caas cac- caca cacc caco caos caoz casa casc caso cass cava cavo cavs caza cazo ccaa ccac ccas ccca cccc cccs cccv ccoc ccsa ccss ccvo ccvs coas coca coco coos cosa cosc coso coss cova covo cozz csaa csac csao csas csav cscc csco cscs csos cssa cvac cvas cvca cvcc cvss oasc oass oavs ocac ocas occa occc ocos ocsa ooaa oooo ooos oosa osas osca oscc osco osoo osos osov ossa osso ovcs ovo- ovoo s-os sa-c saac saas saaz saca sacc saco sacs saos sasa sasc saso sass sava savo savs saza scaa scac scas sccc sccs scoo scsa scsc scso soas soaz soca soco socs soos sosa soso soss sosv sova sovo sovs soz- soza ssaa ssac ssao ssas ssca sscc sscs ssoc sssa sssc ssss svcc svcs svsc szoc szss vaas vaca vaco vacs vas- vasa vaso vass vava vavs vaza voca vooc vosa voso voss vssc vvvv zaav zaca zacs zaza zoco zoo- zoos zoso zoss zoza zozo zsss zzzs zzzz