a-be aaaa aaab aaae aaal aaav aaba aabb aabl aabt aaea aaev aala aale aall aata aatt aava abaa abab abae abal abat abb- abba abbb abbe abbt abee abel abet abla able ablv abta abva aela aeta aett aeva alaa alae alal alat alb- alba albe alea alee alet alev all- alla alle alll alta alte alva at-l at-t ataa atab atae atal atat atea atee atel atla atle atta atte avab aval avat avea avel avlb avva baaa baal baat baba babb babe bael bala bale ball balt bata bate batt bava bave bbbb bbeb bbet bblb beal beat beav beba bebb bebe beeb beel beet bela bele bell belt beta bete bett betv blaa blab blae blat blbt blea bleb blee blet blvt btaa btla bttb e-la eaba eala eale eata eate eave ebal ebba ebel ebla eeea eeee eele eelv eeta eete eeva el-b elab elal elat elba elbe elea elee elet elev ella elle elta elte elva elve etal etat etee etel etla etta ette evae eval evat evea evel evet evla laaa laal laat laba labe lael laet lala lale lall lata late latt latv lava lave leaa leal leat leba leea leel leet lela lele lell leta lete lett lev- leva leve llat llet llll ltae ltbl ltee lttv lvea taa- taal taat taba tabb tabe tabl tael tala tale tall tata tatb tate tatt tatv tava tave tbta teal teat teba teel teet teev tel- tela tele tell telt teta tete tett teva tevl ttab ttbb tttt tvel tvtv vaal vaat vala vale vall valt vata vate vatt vava veal veat veba veel veet vel- vela vele vell velt veta vete veve vlab vlat vlba vlvt vtvl vvvv