-vac a-be a-ha aaaa aaab aaac aaae aaah aaav aaba aabb aabc aabh aaca aacb aacc aace aach aaco aacv aaea aaec aaev aaha aaoe aaoo aava abaa abab abac abae abb- abba abbb abbe abbo abca abcb abcc abch abec abee abha abho aboa abob aboh aboo abov abva acaa acab acac acae acba acca accc acce acch acco ace- acea acec aceh acev acha ache achh acho acoa acoe acoh acvv aeac aecb aeva ahab ahac ahah ahha ahoa ahoe ahva aoah aoba aoca aoce avab avao avcc avce avco avea avec aveh aveo avva avvo baaa baah baba babb babe babo bac- baca bacc bace bach baco baha baho baoh bava bave bbbb bbch bbeb bcaa bcbc bcca bccc bcec bche bcvo beah beav beba bebb bebe bebo beca bech beeb beo- bevo bhao bhca bhcc boab boac boba bobb bobe bobo boca boce boch boco boea boec boee boeo boha boho boob booc booe booh bova bove bovo c-bo caaa caab caac caah caba cabe cabo cac- caca cacc cace cach caco caec caha cahe cava cave cavo cbac cbbc cbca cbcc cbce cbea cbec cbee cbha cbva cbvb cbve ccaa ccab ccac ccba ccbc ccca cccb cccc cccv ccee ccha cche ccob ccoc ccvo ceac ceba cec- ceca cece ceco ceeb ceec ceva cevo chaa chab chac chae chah chao chav chca chce chch chea cheb chec chee cheh chev chha choc choh choo chov chvo coba cobb cobe cobh cobo coca coce coch coco coha coho coob cooh cova cove covo cvac cvca cvcc eaba eabh eaca eacc each eaec eave ebac ebba ebbc ebbo ebcc eboe eboo ecaa ecac ecao ecbc ecbe ecca eccb eccc ecce ecco echa eche echo eco- eeca eeea eeee eeoc eeva ehaa ehav ehcc ehea eheh evac evae evah evea evoe evoo haab haba habe habo hace haco haec haha haho hava have hboc hcbc hcca hccb hccc hcch heah hebb hebe hebo heca hech heeb hehe heho heve hhaa hhhh hoac hoba hobe hobo hoca hoce hoch hoha hohe hoho hooe hova hove hvac hvcc o-eo oahe obba obbo obea obec oboe ocab ocac ocbc occa occc oce ocee ocha oche oec- oeca oecc oeec ohba ohbe ohcc ohee ohho ohob ohoh ooaa ooba oobe ooha ooho oooh oooo ovee ovo- ovoo vaca vace vach vaco vahe vaho vava vbcc vche veba vecc vech veho veoh veve vevo vhhh voca voce voho vooc vvob vvvv