a-be a-ha aaaa aaab aaad aaae aaah aaba aabb aabd aabh aabt aada aade aadt aaea aaha aata aatt abaa abab abad abae abat abb- abba abbb abbe abbt abda abed abee abet abha abta adaa adab adad adae adah adat adba adda addd adde adea adeb adee adeh adet adha adhd adta aede aedt aeta aett ahab ahad ahah ahat ahed ahet ahha ahta ahte at-t ataa atab atad atae atat atdt atea ated atee atha athe atta atte baaa baad baah baat baba babb babe bada badb badd bade badh baed baha baht bata bate bath batt bbad bbbb bbdd bbeb bbet bddh bead beah beat beba bebb bebe beda bede beeb beed beet beta bete beth bett bhat bhet btaa btdt bttb daab daad daae daba dabb dabt dada dade daeb daha dahe data date datt dbtt dddd dead deae deba debe debt deda dedd dede deeb deed deet deha deta dete deth dhaa dhad dhat dhed dhee dtaa dted dthd eaba eabh eada eadb eadd eata eate eath ebba ebed edad edah edda edde ede- edea edeh edta eede eeea eeee eeta eete eeth ehaa ehdd ehea eheh ehte etah etat etee eth- etha ethe etta ette haab haad haat haba habe habt hada hade hadh haed haet haha haht hata hatb hate hath hatt hdda hdtt head heah heat hebb hebe heda hedd hede heeb heed heet hehe heta hete heth hett hhaa hhat hhhh htab htea htet taa- taat taba tabb tabe tada tade taha tahe tata tatb tate tath tatt tbta tddb tead teat teba teda tedd tede teed teet teta tete teth tett thaa thad thae that the- thea theb thed thee thet thtb ttab ttbb tttt