sge sgf sgg sgi sgn sgp sgr sgs sgt sgu sic sie sif sig sii sin sip sir sis sit siu snc sne snf sng sni snn snp snr sns snt snu spc spe spf spg spi spn spp spr sps spt spu sr- src sre srf srg sri srn srp srr srs srt ss- ssc sse ssf ssg ssi ssn ssp ssr sss sst ssu stc ste stf stg sti stn stp str sts stt stu suc sue suf sug sui sun sup sur sus sut suu tcc tce tcf tcg tci tcn tcp tcr tcs tct tcu te- tec tee tef teg tei ten tep ter tes tet teu tfc tfe tff tfg tfi tfn tfp tfr tfs tft tfu tgc tge tgf tgg tgi tgn tgp tgr tgs tgt tgu tic tie tif tig tii tin tip tir tis tit tiu tnc tne tnf tng tni tnn tnp tnr tns tnt tpc tpe tpf tpg tpi tpn tpp tpr tps tpt tpu trc tre trf trg tri trn trp trr trs trt tru tsc tse tsf tsg tsi tsn tsp tsr tss tst tsu ttc tte ttf ttg tti ttn ttp ttr tts ttt ttu tuc tue tuf tug tui tun tup tur tus tut tuu ucc uce ucf ucg uci ucn ucp ucr ucs uct ucu uec uee uef ueg uei uen uep uer ues uet ufc ufe uff ufg ufi ufn ufp ufr ufs uft ufu ugc uge ugf ugg ugi ugn ugp ugr ugs ugt ugu uic uie uif uig uii uin uip uir uis uit uiu un- unc une unf ung uni unn unp unr uns unt unu up- upc upe upf upg upi upn upp upr ups upt upu ur- urc ure urf urg uri urn urp urr urs urt uru usc use usf usg usi usn usp usr uss ust usu utc ute utf uti utn utp utr uts utt utu uuc uue uug uun uur uus uut uuu