a-be a-ii aaaa aaab aaae aaai aaar aaba aabb aabi aaea aage aaib aaii aara aare aari abaa abab abae abag abai abar abax abb- abba abbb abbe abbi abbr abee aber abia abib abie abig abir abra abri aebi aeer aega aer- aera aeri agag agai agar agba agea agee agei ager agga agge aggi agia agib agie agig agii agir agra agre agri aiai aiba aiea aiee aiga aiia aiib aiir aira aire airi airx aixa aixi arab arae arag arai arar arax arba arbe arbi area aree areg arei arex arga argb arge argi aria arib arie arig arii arr- arra arre arrg arri arrr axar axer axi- axia axie ba-i ba-x baaa baar baba babb babe babi babr baer baga bage bagg bagi baia baib baie baig bair baix bar- bara barb bare barg bari barr barx baxi bbbb bbeb bbga bbrg beag bear beba bebb bebe bebi beeb beeg beer bega begg begi beia beir bera bere berg beri berr bgia biar biba bibb bibe bibi bieb bier biga bigb bige bigg bira birb bire birg biri birr birx bixa bixi brab brae brag brai brax brea breb bree breg brei brer brex bria brie brig brix brrr eaba eaga eage eara earb eare ebba ebbr eber ebix eeea eeee eega eera eerg egaa egae egar egba egbe egea egee eger eggb egge eggi egir egra egre egri eiei eier eige eigg eira eire er-x erba erbb erbe ereb erei erer erg- erga ergg ergi eria erie erra erre exa- exai exer exge exgi exrx gaar gaba gabb gabe gabi gabr gaea gaer gaga gage gagg gagi gaia gaie gaig gair gara garb gare garg gari garr gbag geab geai gear geba gebe gebi geer gege gegg geia geie geig geir gera gerb gere geri gggg giaa giai giba gibb gibe gier giga gige gigg gigi gira gire girg giri girr grab grae grai grbr grea greb gree greg grex gria grib grie grig grrr i-be iaaa iaai iaba iaea iaia iara iare ibar ibea ibeg ibex ibga ibge ibia ibie ibra ibri ieie iera iere ieri igar igba igea iger igga igia igra igri iiie iiii iira irae irai irar irbe iree irer irex iri- iria irie irig irix irra irre irri ixia ixxi raab raag raba rabb rabe rabi raeg raer raga rage ragg ragi raia raie raig raii rair raix rara rarb rare rari raxa raxi rbbb rbbr rea- reae rear reba rebb rebe reeb rega rege regi regr reia reii reir rera rere rerg reri rexx rgba rgbe rgbi riaa riab riai rib- riba ribe rier riex riga rige rigg rigi riia rire riri rixe rrrr xaar xaga xara xare xbai xbar xbee xbra xeer xega xer- xera xexe xggi xibe xiii xixi xxii xxix xxxi xxxx