a-be a-ya aaaa aaab aaae aaav aaba aabb aaby aaea aaev aava abaa abab abae abau abax abay abb- abba abbb abbe abby abee abey abua abue abuy abva abye abyy aeby aeva auaa aube auby auve auxa auxy avab avax avay avea aveu avex avey avva avvy avye ayay ayub ayya ba-x baaa baba babb babe babu baby bau- baux bava bave bavu baya baye bayu bbau bbay bbbb bbeb beau beav beay beba bebb bebe beby beeb beey beux bevy beya beye buba bubb bube bubu buea bueu buve buxa buxy buyu eaba eaux eave ebay ebba ebby ebya eeby eeea eeee eeva euba euvy evae evea evex evey exa- exxy eyeb eyey uaua ubay ubba ubbe ubyx ueba uuuu uv-a uv-b uvaa uvae uvea uvvu uxue uyea vaux vava vaxy vaya vaye vayu vbyv veau veba veve vevy vexx veye vvvv vyue xbee xexe xuxa xuxu xxxv xxxx xxxy yaba yaue yava yave yaxa yaxe yaya yayu ye-u yeax yeue yeux yeve yeye yuba yubu yuea yuva yuxa yuxu yuya yuye yuyu yyyy