a-be aaaa aaab aaad aaae aaba aabb aabd aabt aada aade aadt aaea aata aatt abaa abab abad abae abat abb- abba abbb abbe abbt abda abed abee abet abez abta abza adaa adab adad adae adat adba adda addd adde adea adeb adee adet adta adze aede aedt aeta aett at-t ataa atab atad atae atat atdt atea ated atee atez atta atte aza- azab azad azat azaz azed azet azza baaa baad baat baaz baba babb babe bada badb badd bade baed baez bata bate batt batz baza baze bbad bbbb bbdd bbeb bbet bead beat beba bebb bebe beda bede beeb beed beet beta bete bett betz bezd beze btaa btdt bttb bzzt bzzz daab daad daae daba dabb dabt dada dade daeb data date datt datz daze dazz dbtt dddd dead deae deba debe debt deda dedd dede deeb deed deet deta dete deza deze dtaa dted dzbb dzze eaba eada eadb eadd eata eate ebba ebed edad edda edde ede- edea edta eede eeea eeee eeta eete eeze etat etee etta ette ezed taa- taat taba tabb tabe tada tade tata tatb tate tatt tatz taza taze tazz tbta tddb tead teat teaz teba teda tedd tede teed teet teez teta tete tett tetz teza tezz ttab ttbb tttt tzzt zaat zaba zada zaza zeae zeba zebe zedd zede zeta zete zeze zzzz