a-a a-b a-i a-q aaa aab aai aaq aau aax ab- aba abb abi abq abu abx ai- aia aib aii aiq aiu aix aqa aqi au- aua aub aui aux ax- axa axi axx b-u baa bab bai baq bau bax bba bbb bbi bbq bbu bbx bi- bia bib bii biu bix bua bub bui buu bux bxb bxi bxq bxx ia- iaa iab iai iaq iau iba ibb ibi ibu ibx iia iib iii iiu iix iqa iqu iu- iua iub iui ixi qaa qau qax qba qbq qiu qix qqq qqu qu- qua qui qux ua- uaa uab uai uaq uau uba ubb ubi ubu ubx uia uib uii uiq uiu uua uuu uxb uxu xaa xau xbx xia xii xiu xix xui xxi xxx