sks skt sku sob soc soe soh soi sok soo sor sos sot sou sr- srb src sre srh sri srk sro srr srs srt ss- ssb ssc sse ssh ssi ssk sso ssr sss sst ssu stb stc ste sth sti stk sto str sts stt stu sub suc sue suh sui suk suo sur sus sut suu tbb tbc tbe tbh tbi tbk tbo tbr tbs tbt tbu tcb tcc tce tch tci tck tco tcr tcs tct tcu te- teb tec tee teh tei tek teo ter tes tet teu th- thb thc the thh thi thk tho thr ths tht thu tib tic tie tih tii tik tio tir tis tit tiu tkb tkc tke tkk tko tkr tks tkt to- tob toc toe toh toi tok too tor tos tot tou trb trc tre trh tri trk tro trr trs trt tru tsb tsc tse tsh tsi tsk tso tsr tss tst tsu ttb ttc tte tth tti ttk tto ttr tts ttt ttu tub tuc tue tuh tui tuk tuo tur tus tut tuu ubb ubc ube ubh ubi ubk ubo ubr ubs ubt ubu ucb ucc uce uch uci uck uco ucr ucs uct ucu ueb uec uee ueh uei uer ues uet uhb uhc uhe uhh uhi uho uhr uhs uht uhu uib uic uie uii uio uir uis uit uiu ukb ukc uke uki ukk ukr uku uob uoc uoe uok uoo uor uos uot ur- urb urc ure uri urk uro urr urs urt uru usb usc use ush usi usk uso usr uss ust usu utb utc ute uth uti utk uto utr uts utt utu uuc uue uur uus uut uuu