sgg sgi sgn sgo sgp sgr sgs sgt sgu sic sie sig sii sin sio sip sir sis sit siu snc sne sng sni snn sno snp snr sns snt snu soc soe sog soi son soo sop sor sos sot sou spc spe spg spi spn spo spp spr sps spt spu sr- src sre srg sri srn sro srp srr srs srt ss- ssc sse ssg ssi ssn sso ssp ssr sss sst ssu stc ste stg sti stn sto stp str sts stt stu suc sue sug sui sun suo sup sur sus sut suu tcc tce tcg tci tcn tco tcp tcr tcs tct tcu te- tec tee teg tei ten teo tep ter tes tet teu tgc tge tgg tgi tgn tgo tgp tgr tgs tgt tgu tic tie tig tii tin tio tip tir tis tit tiu tnc tne tng tni tnn tno tnp tnr tns tnt to- toc toe tog toi ton too top tor tos tot tou tpc tpe tpg tpi tpn tpo tpp tpr tps tpt tpu trc tre trg tri trn tro trp trr trs trt tru tsc tse tsg tsi tsn tso tsp tsr tss tst tsu ttc tte ttg tti ttn tto ttp ttr tts ttt ttu tuc tue tug tui tun tuo tup tur tus tut tuu ucc uce ucg uci ucn uco ucp ucr ucs uct ucu uec uee ueg uei uen uep uer ues uet ugc uge ugg ugi ugn ugo ugp ugr ugs ugt ugu uic uie uig uii uin uio uip uir uis uit uiu un- unc une ung uni unn uno unp unr uns unt unu uoc uoe uog uon uoo uop uor uos uot up- upc upe upg upi upn upo upp upr ups upt upu ur- urc ure urg uri urn uro urp urr urs urt uru usc use usg usi usn uso usp usr uss ust usu utc ute uti utn uto utp utr uts utt utu uuc uue uug uun uur uus uut uuu