sio sir sis sit siu slc sle slh sli sll sln slo slr sls slt slu snc sne sni snl snn sno snr sns snt snu soc soe soh soi sol son soo sor sos sot sou sr- src sre srh sri srl srn sro srr srs srt ss- ssc sse ssh ssi ssl ssn sso ssr sss sst ssu stc ste sth sti stl stn sto str sts stt stu suc sue suh sui sul sun suo sur sus sut suu tcc tce tch tci tcl tcn tco tcr tcs tct tcu te- tec tee teh tei tel ten teo ter tes tet teu th- thc the thh thi thl thn tho thr ths tht thu tic tie tih tii til tin tio tir tis tit tiu tlc tle tlh tli tll tln tlo tlr tls tlt tlu tnc tne tnh tni tnl tnn tno tnr tns tnt to- toc toe toh toi tol ton too tor tos tot tou trc tre trh tri trl trn tro trr trs trt tru tsc tse tsh tsi tsl tsn tso tsr tss tst tsu ttc tte tth tti ttl ttn tto ttr tts ttt ttu tuc tue tuh tui tul tun tuo tur tus tut tuu ucc uce uch uci ucl ucn uco ucr ucs uct ucu uec uee ueh uei uel uen uer ues uet uhc uhe uhh uhi uhl uho uhr uhs uht uhu uic uie uii uil uin uio uir uis uit uiu ulc ule uli ull uln ulo ulr uls ult ulu un- unc une unh uni unl unn uno unr uns unt unu uoc uoe uol uon uoo uor uos uot ur- urc ure uri url urn uro urr urs urt uru usc use ush usi usl usn uso usr uss ust usu utc ute uth uti utl utn uto utr uts utt utu uuc uue uun uur uus uut uuu