soo sop sor sos sot spa spb spc spd spe sph spi spn spo spp spr sps spt sr- sra srb src srd sre srh sri srn sro srp srr srs srt ss- ssa ssb ssc ssd sse ssh ssi ssn sso ssp ssr sss sst sta stb stc std ste sth sti stn sto stp str sts stt taa tab tac tad tae tah tai tan tao tap tar tas tat tba tbb tbc tbd tbe tbh tbi tbn tbo tbp tbr tbs tbt tca tcb tcc tcd tce tch tci tcn tco tcp tcr tcs tct tda tdb tdc tdd tde tdh tdi tdn tdo tdp tdr tds tdt te- tea teb tec ted tee teh tei ten teo tep ter tes tet th- tha thb thc thd the thh thi thn tho thp thr ths tht tia tib tic tid tie tih tii tin tio tip tir tis tit tna tnb tnc tnd tne tnh tni tnn tno tnp tnr tns tnt to- toa tob toc tod toe toh toi ton too top tor tos tot tpa tpb tpc tpd tpe tph tpi tpn tpo tpp tpr tps tpt tra trb trc trd tre trh tri trn tro trp trr trs trt tsa tsb tsc tsd tse tsh tsi tsn tso tsp tsr tss tst tta ttb ttc ttd tte tth tti ttn tto ttp ttr tts ttt