sr- sra srb src sre srg srh sri srm srn sro srr srs srt ss- ssa ssb ssc sse ssg ssh ssi ssm ssn sso ssr sss sst sta stb stc ste stg sth sti stm stn sto str sts stt taa tab tac tae tag tah tai tam tan tao tar tas tat tba tbb tbc tbe tbg tbh tbi tbm tbn tbo tbr tbs tbt tca tcb tcc tce tcg tch tci tcm tcn tco tcr tcs tct te- tea teb tec tee teg teh tei tem ten teo ter tes tet tga tgb tgc tge tgg tgh tgi tgm tgn tgo tgr tgs tgt th- tha thb thc the thg thh thi thm thn tho thr ths tht tia tib tic tie tig tih tii tim tin tio tir tis tit tma tmb tmc tme tmg tmh tmi tmm tmn tmo tmr tms tmt tna tnb tnc tne tng tnh tni tnm tnn tno tnr tns tnt to- toa tob toc toe tog toh toi tom ton too tor tos tot tra trb trc tre trg trh tri trm trn tro trr trs trt tsa tsb tsc tse tsg tsh tsi tsm tsn tso tsr tss tst tta ttb ttc tte ttg tth tti ttm ttn tto ttr tts ttt