sr- sra srd srh sri srl sro srp srr srs srt srx ss- ssa ssd ssh ssi ssl sso ssp ssr sss sst ssx sta std sth sti stl sto stp str sts stt stx sxi sxl sxs sxt t-x taa tad tah tai tal tao tap tar tas tat tax tda tdd tdh tdi tdl tdo tdp tdr tds tdt tdx th- tha thd thh thi thl tho thp thr ths tht thx tia tid tih tii til tio tip tir tis tit tix tla tld tlh tli tll tlo tlp tlr tls tlt tlx to- toa tod toh toi tol too top tor tos tot tox tpa tpd tph tpi tpl tpo tpp tpr tps tpt tpx tra trd trh tri trl tro trp trr trs trt trx tsa tsd tsh tsi tsl tso tsp tsr tss tst tsx tta ttd tth tti ttl tto ttp ttr tts ttt ttx txi txl txs txt xaa xad xal xap xar xas xat xda xdh xdi xdr xds xdt xhd xhp xht xia xii xio xis xit xix xla xld xli xlr xls xlt xoa xod xoi xoo xop xor xos xot xox xpa xpd xpl xpo xpp xps xpt xrd xrt xrx xsa xsi xsl xsp xss xst xti xtp xtr xts xtx xxi xxl xxo xxp xxx