scs sct scu se- sea sec see seg sei sel sen ser ses set seu sga sgc sge sgg sgi sgl sgn sgr sgs sgt sgu sia sic sie sig sii sil sin sir sis sit siu sla slc sle slg sli sll sln slr sls slt slu sna snc sne sng sni snl snn snr sns snt snu sr- sra src sre srg sri srl srn srr srs srt ss- ssa ssc sse ssg ssi ssl ssn ssr sss sst ssu sta stc ste stg sti stl stn str sts stt stu sua suc sue sug sui sul sun sur sus sut suu taa tac tae tag tai tal tan tar tas tat tau tca tcc tce tcg tci tcl tcn tcr tcs tct tcu te- tea tec tee teg tei tel ten ter tes tet teu tga tgc tge tgg tgi tgl tgn tgr tgs tgt tgu tia tic tie tig tii til tin tir tis tit tiu tla tlc tle tlg tli tll tln tlr tls tlt tlu tna tnc tne tng tni tnl tnn tnr tns tnt tra trc tre trg tri trl trn trr trs trt tru tsa tsc tse tsg tsi tsl tsn tsr tss tst tsu tta ttc tte ttg tti ttl ttn ttr tts ttt ttu tua tuc tue tug tui tul tun tur tus tut tuu ua- uaa uac uae uag uai ual uan uar uas uat uau uca ucc uce ucg uci ucl ucn ucr ucs uct ucu uea uec uee ueg uei uel uen uer ues uet uga ugc uge ugg ugi ugl ugn ugr ugs ugt ugu uia uic uie uig uii uil uin uir uis uit uiu ula ulc ule ulg uli ull uln ulr uls ult ulu un- una unc une ung uni unl unn unr uns unt unu ur- ura urc ure urg uri url urn urr urs urt uru usa usc use usg usi usl usn usr uss ust usu uta utc ute uti utl utn utr uts utt utu uua uuc uue uug uun uur uus uut uuu