eee eeg ees eet eex ege egg egs egt egx es- ese esg ess est esx ete etg ets ett etx ex- exe exs ext exx ge- gee geg ges get gex ggg ggs ggt gse gsg gss gst gsx gte gtg gts gtt gtx gxs gxt se- see seg ses set sex sge sgg sgs sgt sgx ss- sse ssg sss sst ssx ste stg sts stt stx sxs sxt t-x te- tee teg tes tet tex tge tgg tgs tgt tse tsg tss tst tsx tte ttg tts ttt ttx txe txs txt xee xeg xes xet xex xge xss xst xts xtx xxx