a-ak a-be aaaa aaab aaae aaal aaav aaba aabb aabl aaea aaev aaka aake aala aale aall aava abaa abab abae abak abal abb- abba abbb abbe abee abel abla able ablv abva aeka aela aeva akaa akae akal akee akel akka akle alaa alae alak alal alb- alba albe alea alee alek alev alk- alka alkb alke all- alla alle alll alva avab aval avea avel avlb avva baaa baak baal baba babb babe baek bael bak- baka bake bakl bala bale balk ball bava bave bbbb bbeb bblb beak beal beav beba bebb bebe beeb beek beel beka beke bela bele belk bell blaa blab blae blak blea bleb blee blek blkb e-la eaba eala eale eave ebal ebba ebel ebla eeea eeee eeka eeke eele eelv eeva eka- ekab ekeb ekek ekka el-b elab elal elba elbe elea elee elek elev elka elke ella elle elva elve evae eval evea evel evla evvk kaaa kaab kaak kaal kaba kabb kabe kael kaka kake kakk kala kalb kale kalk kall kalv kava kavb kave kavl kavv kbaa kbab kbae kbak kbal kbba kbbb kbbe kbbk kbbl kbeb kbee kbek kbel kbev kbkb kbkk kbkl kbkv kbla kblb kble kbll kblv kbva kbvb kea- keak keal keba kebb kebe keek keel keka kekb keke kekl kela kele kelk kell keva keve kkaa kkal kkba kkbb kkbe kkbl kkea kkkk kklb kkll kklv kkvv klaa klab klak klal klav klbb klbe klbl klea kleb klee klek klka klkk klkl klkv klla kllb klle kllk kllv klvb klve klvk klvl klvv kvab kvak kval kvbl kvea kvel kvkl kvlb kvle kvlv kvvl kvvv laaa laak laal laba labe lael laka lake lala lale lall lava lave leaa leak leal leba leea leek leel leka leke lekk lela lele lell lev- leva leve lkab lkal llll lvea vaal vaka vake vala vale valk vall vava veak veal veba veel veka veke vel- vela vele vell veve vlab vlba vvvv