sco scr scs sct scu sga sgc sgg sgi sgm sgn sgo sgr sgs sgt sgu sia sic sig sii sim sin sio sir sis sit siu sma smc smg smi smm smn smo smr sms smt smu sna snc sng sni snm snn sno snr sns snt snu soa soc sog soi som son soo sor sos sot sou sr- sra src srg sri srm srn sro srr srs srt ss- ssa ssc ssg ssi ssm ssn sso ssr sss sst ssu sta stc stg sti stm stn sto str sts stt stu sua suc sug sui sum sun suo sur sus sut suu taa tac tag tai tam tan tao tar tas tat tau tca tcc tcg tci tcm tcn tco tcr tcs tct tcu tga tgc tgg tgi tgm tgn tgo tgr tgs tgt tgu tia tic tig tii tim tin tio tir tis tit tiu tma tmc tmg tmi tmm tmn tmo tmr tms tmt tmu tna tnc tng tni tnm tnn tno tnr tns tnt to- toa toc tog toi tom ton too tor tos tot tou tra trc trg tri trm trn tro trr trs trt tru tsa tsc tsg tsi tsm tsn tso tsr tss tst tsu tta ttc ttg tti ttm ttn tto ttr tts ttt ttu tua tuc tug tui tum tun tuo tur tus tut tuu ua- uaa uac uag uai uam uan uao uar uas uat uau uca ucc ucg uci ucm ucn uco ucr ucs uct ucu uga ugc ugg ugi ugm ugn ugo ugr ugs ugt ugu uia uic uig uii uim uin uio uir uis uit uiu um- uma umc umg umi umm umn umo umr ums umt umu un- una unc ung uni unm unn uno unr uns unt unu uoa uoc uog uom uon uoo uor uos uot ur- ura urc urg uri urm urn uro urr urs urt uru usa usc usg usi usm usn uso usr uss ust usu uta utc uti utm utn uto utr uts utt utu uua uuc uug uum uun uur uus uut uuu