sie sih sii sin sio sis sit six sna snc snd sne sni snn sno sns snt soa soc sod soe soh soi son soo sos sot sox ss- ssa ssc ssd sse ssh ssi ssn sso sss sst ssx sta stc std ste sth sti stn sto sts stt stx sxc sxi sxn sxs sxt t-x taa tac tad tae tah tai tan tao tas tat tax tca tcc tcd tce tch tci tcn tco tcs tct tcx tda tdc tdd tde tdh tdi tdn tdo tds tdt tdx te- tea tec ted tee teh tei ten teo tes tet tex th- tha thc thd the thh thi thn tho ths tht thx tia tic tid tie tih tii tin tio tis tit tix tna tnc tnd tne tnh tni tnn tno tns tnt tnx to- toa toc tod toe toh toi ton too tos tot tox tsa tsc tsd tse tsh tsi tsn tso tss tst tsx tta ttc ttd tte tth tti ttn tto tts ttt ttx txe txi txn txs txt xaa xac xad xan xas xat xcd xch xci xcx xda xdc xde xdh xdi xds xdt xed xee xen xes xet xex xhd xht xia xic xie xii xin xio xis xit xix xna xnc xno xns xoa xoc xod xoi xon xoo xos xot xox xsa xsc xsi xss xst xtc xti xts xtx xxi xxo xxx