a-a a-i aaa aad aae aai aao aax ad- ada add ade adi ado adx aea aed aee aei aeo aex ai- aia aid aie aii aio aix aoa aod aoe aoi aoo aox ax- axa axe axi axo axx daa dad dae dai dao dax dda ddd dde ddi ddo ddx de- dea ded dee dei deo dex di- dia did die dii dio dix doa dod doe doi doo dox dxd dxi dxo dxx eaa ead eae eai eao eax ed- eda edd ede edi edo edx eea eed eee eeo eex eia eid eie eii eio eix eo- eoa eod eoe eoi eoo ex- exa exd exe exi exo exx i-d ia- iaa iad iae iai iao ida idd ide idi ido idx ie- iea ied iee iei iex iia iid iie iii iio iix io- ioa iod ioe ioi ioo ixe ixi o-i oaa oad oae oai oao oax oda odd ode odi odo oea oed oee oei oeo oex oia oid oie oii oio oo- ooa ood ooi ooo oox ox- oxa oxi oxo oxx xaa xad xda xde xdi xed xee xex xia xie xii xio xix xoa xod xoi xoo xox xxi xxo xxx