a-a a-b a-i a-q aaa aab aae aai aaq aau aax ab- aba abb abe abi abq abu abx aea aeb aee aei aeq aeu aex ai- aia aib aie aii aiq aiu aix aqa aqi au- aua aub aue aui aux ax- axa axe axi axx b-u baa bab bae bai baq bau bax bba bbb bbe bbi bbq bbu bbx be- bea beb bee bei beq beu bex bi- bia bib bie bii biu bix bqe bua bub bue bui buu bux bxb bxi bxq bxx eaa eab eae eai eau eax eba ebb ebe ebi ebq ebu ebx eea eeb eee eex eia eib eie eii eiu eix eqa eqe eqq equ eu- eua eub eue eui eux ex- exa exe exi exu exx ia- iaa iab iae iai iaq iau iba ibb ibe ibi ibu ibx ie- iea iee iei iex iia iib iie iii iiu iix iqa iqe iqu iu- iua iub iue iui ixe ixi qaa qau qax qba qbe qbq qee qex qie qiu qix qqq qqu qu- qua que qui qux qxe ua- uaa uab uae uai uaq uau uba ubb ube ubi ubu ubx uea ueb uee uei uia uib uie uii uiq uiu uua uue uuu uxb uxu xaa xau xbe xbx xee xeq xeu xex xia xie xii xiu xix xue xui xxi xxx