a-a aaa aag aak aao aar aau ag- aga agg agk ago agr agu aka akg akk ako akr aku aoa aog aok aoo aor aou ar- ara arg ark aro arr aru au- aua aug auk auo aur gaa gag gak gao gar gau gga ggg ggo ggr ggu gka gko goa gog gok goo gor gou gra grg grk gro grr gru gu- gua gug guk guo gur guu ka- kaa kag kak kao kar kau kga kgo kgu kkk kkr kku koa kog kok koo kor kou kra krg krk kro krr kru kug kuk kur kuu oaa oag oak oao oar oau oga ogg ogo oka okg okk oko okr oku oo- ooa oog ook ooo oor or- ora org ork oro orr oru ou- oua ouk ouo our ra- raa rag rak rao rar rau rga rgg rgk rgo rgr rkg rkk rko rku roa rog rok roo ror rou rra rrg rrk rrr rru rua rug ruk ruo rur ruu ua- uaa uag uak uao uar uau uga ugg ugk ugo ugr ugu uka ukk ukr uku uoa uog uok uoo uor ur- ura urg urk uro urr uru uua uug uur uuu