-ana -vac a-un aaaa aaac aaan aaav aaca aacc aacn aaco aacu aacv aana aaon aaoo aava acaa acac acan acca accc acco accu acoa acon acou acu- acuo acvv ana- anaa anac anan anao anau anca ancc anco anna anno ano- anoa anon anua anun aoca aono aoun auaa auca auna avan avao avcc avco avon avou avun avva avvo caaa caac caan cac- caca cacc caco cana canc cann cano cauc cauo cava cavo cavu ccaa ccac ccca cccc cccu cccv ccna ccnc ccnu ccoc ccuc ccvo cnaa cnac cnco cnna coan coca coco cocu con- cona conc conn cono conv coon coua coun cova covo cuan cuau cuca cucc cucn cuna cuno cuon cvac cvca cvcc naaa naac naan naca nacc naco nan- nana nann nano nanu naoc nauo nava navo navv ncaa ncac ncca nccc nccn nccu ncna ncnc ncoa ncoc ncua nnnn noaa noac noco non- nona nonn nono nonu noo- noon nooo noov noun nov- nova novo nuan nuca nucu nuna nunc nunn nuno nuoc nuon nuva nuvo nvcc oaau ocac ocan occa occc occn ocna ocon onan onc- onca onco onna onno onon ooaa oona oooo ouac ouan oucc oun- ouna ouu- ovan ovo- ovon ovoo uaca uaoc uaua ucan ucav ucca ucon ucua unaa unac unan unau unca uncc unco unna unno unon unov uocc uovo uuno uuoc uuuu uv-a uv-c uvaa uvac uvvu vaan vaca vaco vana vanc vann vano vanu vava vcon vnav voca vona vonn vooc voun vuca vuco vuno vvvv