ssc sse ssg ssh ssi ssn ssr sss sst ssx sta stc ste stg sth sti stn str sts stt stx sxc sxi sxn sxs sxt t-x taa tac tae tag tah tai tan tar tas tat tax tca tcc tce tcg tch tci tcn tcr tcs tct tcx te- tea tec tee teg teh tei ten ter tes tet tex tga tgc tge tgg tgh tgi tgn tgr tgs tgt th- tha thc the thg thh thi thn thr ths tht thx tia tic tie tig tih tii tin tir tis tit tix tna tnc tne tng tnh tni tnn tnr tns tnt tnx tra trc tre trg trh tri trn trr trs trt trx tsa tsc tse tsg tsh tsi tsn tsr tss tst tsx tta ttc tte ttg tth tti ttn ttr tts ttt ttx txe txi txn txs txt xaa xac xag xan xar xas xat xch xci xcr xcx xee xeg xen xer xes xet xex xge xgi xht xia xic xie xii xin xis xit xix xna xnc xns xrc xrt xrx xsa xsc xsi xss xst xtc xti xtr xts xtx xxi xxx