sos sot sr- sra src srd sre srf srh sri srl srn sro srr srs srt ss- ssa ssc ssd sse ssf ssh ssi ssl ssn sso ssr sss sst sta stc std ste stf sth sti stl stn sto str sts stt taa tac tad tae taf tah tai tal tan tao tar tas tat tca tcc tcd tce tcf tch tci tcl tcn tco tcr tcs tct tda tdc tdd tde tdf tdh tdi tdl tdn tdo tdr tds tdt te- tea tec ted tee tef teh tei tel ten teo ter tes tet tfa tfc tfd tfe tff tfh tfi tfl tfn tfo tfr tfs tft th- tha thc thd the thf thh thi thl thn tho thr ths tht tia tic tid tie tif tih tii til tin tio tir tis tit tla tlc tld tle tlf tlh tli tll tln tlo tlr tls tlt tna tnc tnd tne tnf tnh tni tnl tnn tno tnr tns tnt to- toa toc tod toe tof toh toi tol ton too tor tos tot tra trc trd tre trf trh tri trl trn tro trr trs trt tsa tsc tsd tse tsf tsh tsi tsl tsn tso tsr tss tst tta ttc ttd tte ttf tth tti ttl ttn tto ttr tts ttt