-vac a-be a-ha a-ya aaaa aaab aaac aaae aaah aaav aaba aabb aabc aabh aaby aaca aacb aacc aace aach aacv aacy aaea aaec aaev aaha aava abaa abab abac abae abay abb- abba abbb abbe abby abca abcb abcc abch abec abee abey abha abva abyc abye abyy acaa acab acac acae acba acca accc acce acch accy ace- acea acec aceh acev acey acha ache achh achy acvv aeac aeby aecb aeva ahab ahac ahah ahey ahha ahva avab avay avcc avce avea avec aveh avey avva avvy avye ayah ayay ayca ayce ayhe ayya baaa baah baba babb babe baby bac- baca bacc bace bach baha bava bave baya baye bayh bbay bbbb bbch bbeb bcaa bcbc bcca bccc bcec bche beah beav beay beba bebb bebe beby beca bech beeb beey bevy beya beye bhca bhcc byce bych caaa caab caac caah caba cabe caby cac- caca cacc cace cach caec caha cahe cava cave cavy caye cbac cbbc cbca cbcc cbce cbea cbec cbee cbha cbva cbvb cbve ccaa ccab ccac ccba ccbc ccca cccb cccc cccv ccee ccha cche cchy ceac ceba cec- ceca cece ceeb ceec ceva cevy chaa chab chac chae chah chav chay chca chce chch chea cheb chec chee cheh chev chey chha chy- chyc cvac cvca cvcc cya- cyaa cyba cybb cybc cyc- cyca cycb cycc cyve cyy- cyyc eaba eabh eaca eacc each eaec eave ebac ebay ebba ebbc ebby ebcc ebya ecaa ecac ecbc ecbe ecca eccb eccc ecce echa eche eeby eeca eeea eeee eeva ehaa ehav ehcc ehea eheh ehya evac evae evah evea evey eyah eyeb eyec eyey haab haba habe haby hace haec haha hava have havy haya haye hcbc hcca hccb hccc hcch heah hebb hebe heby heca hech heeb hehe heve heya heye heyh hhaa hhhh hvac hvcc hy-v hybe hyce hyhe hyve vaca vace vach vahe vava vaya vaye vbcc vbyv vche veba vecc vech veve vevy veye vhhh vvvv vyce vych yaba yacc yacy yava yave yaya ycab yccc ycch ycee yche yeah yech yeha yehe yeve yeye yhvh yyyy