-er -ey eee eem eeo eer eex eey eie eii eim eio eir eix em- eme emi emm emo emr emx eo- eoe eoi eom eoo eor ere eri erm ero err ery ex- exe exi exo exr exx exy eye eym eyo eyr ie- iee iei iem ier iex iey iie iii iim iio iir iix im- ime imi imm imo imx imy io- ioe ioi iom ioo ior ir- ire iri irm iro irr irx iry ixe ixi ixy iye iym iyo iyr iyy m-o m-r mee mei mem meo mer mex mey mi- mie mii mim mio mir mix miy mme mmi mmm mmo mmr mmx moe moi mom moo mor mox moy mre mri mrm mro mrr mrx mry mxi mxr my- mye mym myo myr myx o-i oee oei oem oeo oer oex oey oie oii oim oio oir om- ome omi omm omo omr omx omy oo- ooi oom ooo oor oox or- ore ori orm oro orr orx ory ox- oxi oxo oxx oxy oye oyi oyo re- ree rei rem reo rer rex rey rie rii rim rio rir rix riy rme rmi rmm rmo rmr rmx roe roi rom roo ror rox roy rri rrm rrr rxr ry- rye rym ryo ryr ryy xee xem xer xex xie xii xio xix xmi xmm xmo xmr xmx xoi xom xoo xor xox xrx xry xxi xxo xxx xxy xyr xyy yee yei yem yeo yer yex yey yie yii yim yio yir yme ymi ymm ymo yoe yoi yom yoo yor yox yoy yre yro yxe yxy yye yyy