-er eee eem eer eet eew eex em- eme emm emr emt emw emx ere erm err ert erw ete etm etr ett etw etx ewe ewm ewr ewt eww ex- exe exr ext exw exx m-r m-w mee mem mer met mew mex mme mmm mmr mmt mmw mmx mre mrm mrr mrt mrw mrx mte mtm mtr mtt mtw mtx mwe mwm mwr mww mxr re- ree rem rer ret rew rex rme rmm rmr rmt rmx rrm rrr rrt rte rtm rtr rtt rtw rtx rwe rwm rwr rxr t-x te- tee tem ter tet tew tex tme tmm tmr tmt tmw tmx tre trm trr trt trw trx tte ttm ttr ttt ttw ttx twe twm twr twt tww twx txe txt wee wem wer wet wew wex wm- wme wmm wmr wmt wr- wre wrm wrr wrt wrw wrx wtm wtr wtt wtw wtx wwe wwm wwt www wxw xee xem xer xet xew xex xmm xmr xmt xmx xrt xrx xtm xtr xtx xwt xxx