-ey a-a aaa aae aan aao aax aay aea aee aen aeo aex aey an- ana ane ann ano anx any aoa aoe aon aoo aox ax- axa axe axn axo axx ay- aya aye ayn ayo ayx eaa eae ean eao eax eea eee een eeo eex eey en- ena ene enn eno eny eo- eoa eoe eon eoo ex- exa exe exo exx exy eya eye eyn eyo naa nae nan nao nax nay ne- nea nee nen neo nex ney nna nne nnn nno no- noa noe non noo nox noy nya nye nyn nyo nyx nyy oaa oae oan oao oax oea oee oen oeo oex oey on- ona one onn ono onx ony oo- ooa oon ooo oox ox- oxa oxn oxo oxx oxy oya oye oyo xaa xan xee xen xex xna xno xoa xon xoo xox xxo xxx xxy xyy yaa yae yan yao yax yay yea yee yen yeo yex yey yna yne ynn yny yoe yon yoo yox yoy yxa yxe yxy yye yyy