-ana aaaa aaac aaan aaas aaca aacc aacn aaco aacs aana aaon aaoo aasa aasc aass acaa acac acan acas acca accc acco accs acoa acon acos acsa acsc acss ana- anaa anac anan anao anas anaz anca ancc anco anna anno anns ano- anoa anon anos ansa anso anza aoca aocs aono aoss asaa asac asan asao asas asc- asca ascc asco asnc asno asoc ason asos assa assc assn asso asss aza- azan azas azaz azca azna azo- azon azoo azos azza azzo caaa caac caan caas cac- caca cacc caco cana canc cann cano cans canz caos caoz casa casc caso cass caza cazo ccaa ccac ccas ccca cccc cccs ccna ccnc ccns ccoc ccsa ccsn ccss cnaa cnac cnas cnco cnna cnnz cnsa cnss coan coas coca coco con- cona conc conn cono cons coon coos cosa cosc coso coss cozz csaa csac csao csas cscc csco cscs csnz csos cssa czon naaa naac naan naas naca nacc naco nacs nan- nana nann nano nans naoc naos nas- nasa nasc naso nass naza nazo nazz ncaa ncac ncca nccc nccn nccs ncna ncnc ncoa ncoc ncos ncsa ncsc ncss nnnn nnos nnsa nnss noaa noac noco nocs non- nona nonn nono nons noo- noon nooo noos nos- nosa noss nsaa nsac nsca nscc nscs nsna nsos nssa nssc nsso nsss nzcc oasc oass ocac ocan ocas occa occc occn ocna ocon ocos ocsa onan onas onc- onca onco onna onno onon onos onoz onsc onso onza onzo ooaa oona oons oooo ooos oosa osan osas osca oscc osco osno osoo osos ossa osso ozan ozna ozon s-os sa-c saac saan saas saaz saca sacc sacn saco sacs sana sann sano sans sanz saon saos sasa sasc saso sass saza scaa scac scan scas sccc sccs scna scon scoo scsa scsc scsn scso snas snca sncc snco snns snoa snoc snoo snos soan soas soaz soca soco socs son- sona sono sons soon soos sosa soso soss soz- soza ssaa ssac ssan ssao ssas ssca sscc sscs ssns ssoc sssa sssc ssss szoc szss zaan zaca zacs zana zann zano zans zaza zoan zoco zon- zona zons zoo- zoon zoos zoso zoss zoza zozo zsss zzzs zzzz