-vac a-be aaaa aaab aaac aaae aaav aaba aabb aabc aaca aacb aacc aace aacu aacv aaea aaec aaev aava abaa abab abac abae abau abb- abba abbb abbe abca abcb abcc abec abee abua abue abva acaa acab acac acae acba acca accc acce accu ace- acea acec acev acu- acue acvv aeac aecb aeva aqu- aqua aque auaa aube auca auce auve avab avcc avce avea avec aveu avva baaa baba babb babe babu bac- baca bacc bace baqa bau- bava bave bavu bbau bbbb bbbq bbeb bcaa bcbc bcca bccc bcec bcuc beau beav beba bebb bebe beca becu beeb beqa bque buba bubb bube bubq bubu buca bucc buce bucu buea bueu buqa buve caaa caab caac caba cabe cabu cac- caca cacc cace caec caeu cauc cava cave cavu cbac cbbc cbca cbcc cbce cbcu cbea cbec cbee cbva cbvb cbve ccaa ccab ccac ccba ccbc ccca cccb cccc cccu cccv ccee ccuc ceac ceba cebu cec- ceca cece ceeb ceec ceqa ceva cuau cub- cuba cubb cube cuca cucc cuce cucq cuve cvac cvca cvcc eaba eaca eacc eaec eave ebac ebba ebbc ebcc ecaa ecac ecbc ecbe ecca eccb eccc ecce ecua eeca eeea eeee eeva equ- equa eque euba eubc evac evae evea q-be qa-c qcea qcue qqqq quaa quab quae quba qube qucu quee quu- quva uabc uaca uaua ubac ubba ubbe ucav ucbc ucca ucea ucua ueba uqac uqcc uuuu uv-a uv-b uv-c uvaa uvac uvae uvea uvvu vaca vace vava vbcc veau veba vecc veve vuca vvvv