aaaa aaae aaea aage aata aatt aega aeta aett aetx agag agat agea agee aget agga agge agta agte agxt at-t at-x ataa atae atat atax atea atee atex atta atte axat eaga eage eata eate eeea eeee eega eeta eete eext egaa egae egat egea egee egge egta egte etag etat etee etta ette exa- exge exta exte gaea gaga gage gagg gata gate gatt gatx geat geet gege gegg geta gete getg gett gggg gtaa gtea gtta taa- taag taat taga tage tagg tata tate tatt tax- taxa taxe taxt teat teet tega tegg tegt teta tete tett tetx texa text tttt txaa txga xaga xate xega xexe xtea xxxx