a-be aaaa aaab aaae aaav aaba aabb aaea aaev aage aava abaa abab abae abag abau abb- abba abbb abbe abee abua abue abug abva aega aeva agag agau agav agba agea agee agga agge aggu agua ague agva auaa aube auga auge auug auve avab avea aveu avva baaa baba babb babe babu baga bage bagg bau- baug bava bave bavu bbau bbbb bbeb bbga beag beau beav beba bebb bebe beeb beeg bega begg begu buba bubb bube bubu buea bueu buga buge bugg buve eaba eaga eage eave ebba eeea eeee eega eeva egaa egae egba egbe egbu egea egee eggb egge euba euge evae evea evga gaba gabb gabe gabu gaea gaga gage gagg gagu gaua gaub gaue gava gave gbag geab geba gebe gege gegg geue geva geve gggg guaa guag guba gubb gubu guga gugb guge gugg gugu guva gvvv uaua ubba ubbe ueba ugab uguu uuuu uv-a uv-b uvaa uvae uvea uvvu vag- vaga vage vagg vava veau veba vega vege veve vugg vvvv