a-be a-fu aaaa aaab aaae aaaf aaba aabb aaea aafa aafb aaff aage aaoe aaoo abaa abab abae abaf abag abau abb- abba abbb abbe abbo abee abff aboa abob abof aboo abou abua abue abuf abug aeaf aega afaa afao afee affa affo afgf afoa afoe afog afoo afua afue ag-o agag agao agau agba agbo agea agee agfa agga agge aggu agob agog agoo agou agua ague aoba aoeu aouf auaa aube aufe auga auge auug baaa baaf baba babb babe babo babu baff bafo baga bage bagg bago bau- bauf baug bbau bbbb bbeb bbga beaf beag beau beba bebb bebe bebo beeb beef beeg befa befe beff befo bega begg bego begu beo- beof bfgf boab boag boba bobb bobe bobo bobu boea boee boef boeo bofa bofe boff bofu boga boge bogg bogo boob booe boof boog boua boue bouf buba bubb bube bubo bubu buea bueu bufe buff bufo buga buge bugg bugo eaaf eaba eafb eaga eage ebba ebbo eboe eboo eeea eeee eefa eefe eega ef-g efab efeo effa efua egaa egae egao egba egbe egbu egea egee eggb egge eggo ego- euba euge faaa faba fabe fabo fabu faeb fafa fafe faff fafg fafo fage fagg fago fagu faue feaf feba febo feeb fefe feff fefo fege fegg feof ffee ffff foaf foba fofo foge fogg fogo foof foua foug fubb fubu fuff fufu fuga fuge fugo fugu gaba gabb gabe gabo gabu gaea gafa gafb gaff gaga gage gagg gago gagu gaua gaub gaue gbag gbbo geab geba gebe gefe gege gegg gego geo- geof geog geue gffa gfoa ggfg gggg goaf goba gobe gobo goef gofe goff gofu goga gogo goof goog gou- gouf goug guaa guag guao guba gubb gubu gufa guff guga gugb guge gugg gugu o-eo oaau oafo obba obbo obea oboe oegb oeuf off- offa offe offo offu ofgo ogae ogb ogba ogbe ogea ogee ogge ogoa ogog ogou ooaa ooba oobe ooff oooo ouea oufe ouff ouge ouu- uafa uaua ubba ubbe ubbo ueba uefa ufag uffa uffe ugab ugao ugeo uggo uguu uofa uofg uofo uuuu