abar abba abbo abou abra abur agar agra agru agür arab arao arar arba arbo arga argo argu aura baar baba babo babu baga bagu bara barg baro boba bobo bobu boga bora boro boru bour buba bubo bubu buga bura burg buru burü bübü bügü büro gaba gaga gago gara garb garo garu gaur gobü goga gogo gora goru grab guba gugo gugu gura gurg guro guru gübü gügü gürg gürü obba obor obua obur ogga orag raab raba roar roba ruag ruba ubur ugru urba urga urra urua urub ürag ürgü