spr sps spt sr- sra srb src srd srg srh sri srn sro srp srr srs srt ss- ssa ssb ssc ssd ssg ssh ssi ssn sso ssp ssr sss sst sta stb stc std stg sth sti stn sto stp str sts stt taa tab tac tad tag tah tai tan tao tap tar tas tat tba tbb tbc tbd tbg tbh tbi tbn tbo tbp tbr tbs tbt tca tcb tcc tcd tcg tch tci tcn tco tcp tcr tcs tct tda tdb tdc tdd tdg tdh tdi tdn tdo tdp tdr tds tdt tga tgb tgc tgg tgh tgi tgn tgo tgp tgr tgs tgt th- tha thb thc thd thg thh thi thn tho thp thr ths tht tia tib tic tid tig tih tii tin tio tip tir tis tit tna tnb tnc tnd tng tnh tni tnn tno tnp tnr tns tnt to- toa tob toc tod tog toh toi ton too top tor tos tot tpa tpb tpc tpd tpg tph tpi tpn tpo tpp tpr tps tpt tra trb trc trd trg trh tri trn tro trp trr trs trt tsa tsb tsc tsd tsg tsh tsi tsn tso tsp tsr tss tst tta ttb ttc ttd ttg tth tti ttn tto ttp ttr tts ttt