a-be aaaa aaab aaac aaae aaal aaam aaba aabb aabc aabl aabm aaca aacb aacc aace aacl aacm aaea aaec aaem aala aalc aale aall aama aamb aamc aame abaa abab abac abae abal abam abb- abba abbb abbe abca abcb abcc abcl abec abee abel abla able abma abmb abmc acaa acab acac acae acba acbl acca accc acce accm ace- acea acec acel acem acla aclc acle acma acmc acme aeac aecb aecl aela aelc alaa alac alae alal alam alb- alba albc albe albm alca alcc alce alea alec alee alem all- alla alle alll alma almc alme amaa amac amae amal amam amb- amba ambe amca amcc amec amee amel amla amm- amma amme baaa baal baam baba babb babe babm bac- baca bacc bace bael bala balc bale ball balm bama bamb bamc bame baml bamm bbbb bbcm bbeb bblb bcaa bcam bcbc bcca bccc bccl bccm bcec bcma beal beam beba bebb bebe beca beeb beel beem bela bele bell belm bema beme blaa blab blac blae blam blea bleb blee blem blme bmaa bmce caaa caab caac caal caam caba cabe cac- caca cacc cace cacm caec caem cala calc cale call calm cama camb camc came caml camm cbac cbal cbbc cbca cbcc cbce cbcl cbcm cbea cbec cbee cblb cblc cbme ccaa ccab ccac ccam ccba ccbc ccca cccb cccc cccl cccm ccee ccel ccla cclc cclm ccma ccmb ccmc ccmm ceac ceal ceba cec- ceca cece cecm ceeb ceec ceel ceem cel- cela celc cele cell cema cemb ceme cemm clab clam clea clec clee clem cmaa cmac cmba cmbc cmcc cmea cmec cmla cmll cmmb cmmc cmml e-cl e-la eaba eaca eacc eaec eala ealc eale eama eame ebac ebal ebam ebba ebbc ebcc ebel ebla ecaa ecac ecal ecam ecbc ecbe ecca eccb eccc ecce eccl eccm ecem ecla ecma eeca eeea eeee eele el-b elab elac elal elam elba elbe elca elcb elce elea elec elee elem ella elle elma elme elml emac emae emam emba embe emcc emel emle emlm emma emme emml laaa laac laal laam laba labe laca lacc lace lacl lael laem lala lale lall lalm lama lamb lame lamm lbcc lbmc lcac lcbc lcca lccc lcce lccm leaa leal leam leba leca lece leea leel leem lela lele lell lema leme lemm llcc lllc llll lmcc maaa maac maal maam maba mabe mac- maca macb macc mace maee mael maem mal- mala male mall malm mama mamc mame mbac mbam mbba mbca mcaa mcac mcba mcbc mcca mccc mccl mcla mcmc mcml meal mebe mec- meca mecc mece meel meem mel- mela melb melc mele mell mema memc meme meml mlab mlba mlcc mlle mmaa mmab mmac mmcc mmcl mmcm mmea mmmc mmmm