-vac a-be a-ya a-yo aaaa aaab aaac aaae aaav aaba aabb aabc aaby aaca aacb aacc aace aaco aacv aacy aaea aaec aaev aaoe aaoo aava abaa abab abac abae abay abb- abba abbb abbe abbo abby abca abcb abcc abec abee abey aboa abob aboo abov aboy abva abyc abye abyy acaa acab acac acae acba acca accc acce acco accy ace- acea acec acev acey acoa acoe acoy acvv aeac aeby aecb aeva aoba aoca aoce avab avao avay avcc avce avco avea avec aveo avey avoy avva avvo avvy avye ay-o ayao ayay ayca ayce ayoo ayya baaa baba babb babe babo baby bac- baca bacc bace baco bava bave baya baye bayo bbay bbbb bbeb bboy bbyo bcaa bcbc bcca bccc bcec bcvo beav beay beba bebb bebe bebo beby beca beeb beey beo- bevo bevy beya beye boab boac boba bobb bobe bobo boby boca boce boco boea boec boee boeo boey boob booc booe bova bove bovo bovy boya boye boyo byce byoa byob byoc c-bo caaa caab caac caba cabe cabo caby cac- caca cacc cace caco caec cava cave cavo cavy caye cayo cbac cbbc cbca cbcc cbce cbea cbec cbee cbva cbvb cbve ccaa ccab ccac ccba ccbc ccca cccb cccc cccv ccee ccob ccoc ccvo ceac ceba cec- ceca cece ceco ceeb ceec ceva cevo cevy coba cobb cobe cobo coby coca coce coco coob cova cove covo covy coya coyo cvac cvca cvcc cya- cyaa cyba cybb cybc cybo cyc- cyca cycb cycc cyoa cyve cyy- cyyc eaba eaca eacc eaec eave ebac ebay ebba ebbc ebbo ebby ebcc eboe eboo eboy ebya ecaa ecac ecao ecbc ecbe ecca eccb eccc ecce ecco eco- eeby eeca eeea eeee eeoc eeva evac evae evea evey evoe evoo eyeb eyec eyey o-eo obay obba obbo obby obea obec obey oboe oboy ocab ocac ocbc occa occc oce ocee oec- oeca oecc oeec oeya oeye oeyo ooaa ooba oobe ooby oooo ovee ovey ovo- ovoo oyce oyee vaca vace vaco vava vaya vaye vbcc vbyv veba vecc veve vevo vevy veye voay voca voce vooc voye vvob vvvv vyce yaba yabo yacc yaco yacy yava yave yaya yayo ycab ycao yccc ycee yeve yeye yeyo yoav yoba yobo yova yove yoye yoyo yyyy