sor sos sot spa spc spd spe sph spi spl spn spo spp spr sps spt sr- sra src srd sre srh sri srl srn sro srp srr srs srt ss- ssa ssc ssd sse ssh ssi ssl ssn sso ssp ssr sss sst sta stc std ste sth sti stl stn sto stp str sts stt taa tac tad tae tah tai tal tan tao tap tar tas tat tca tcc tcd tce tch tci tcl tcn tco tcp tcr tcs tct tda tdc tdd tde tdh tdi tdl tdn tdo tdp tdr tds tdt te- tea tec ted tee teh tei tel ten teo tep ter tes tet th- tha thc thd the thh thi thl thn tho thp thr ths tht tia tic tid tie tih tii til tin tio tip tir tis tit tla tlc tld tle tlh tli tll tln tlo tlp tlr tls tlt tna tnc tnd tne tnh tni tnl tnn tno tnp tnr tns tnt to- toa toc tod toe toh toi tol ton too top tor tos tot tpa tpc tpd tpe tph tpi tpl tpn tpo tpp tpr tps tpt tra trc trd tre trh tri trl trn tro trp trr trs trt tsa tsc tsd tse tsh tsi tsl tsn tso tsp tsr tss tst tta ttc ttd tte tth tti ttl ttn tto ttp ttr tts ttt