sbr sbs sbt sbu sia sib sii sil sim sin sio sir sis sit siu sla slb sli sll slm sln slo slr sls slt slu sma smb smi sml smm smn smo smr sms smt smu sna snb sni snl snm snn sno snr sns snt snu soa sob soi sol som son soo sor sos sot sou sr- sra srb sri srl srm srn sro srr srs srt ss- ssa ssb ssi ssl ssm ssn sso ssr sss sst ssu sta stb sti stl stm stn sto str sts stt stu sua sub sui sul sum sun suo sur sus sut suu taa tab tai tal tam tan tao tar tas tat tau tba tbb tbi tbl tbm tbn tbo tbr tbs tbt tbu tia tib tii til tim tin tio tir tis tit tiu tla tli tll tlm tln tlo tlr tls tlt tlu tma tmb tmi tml tmm tmn tmo tmr tms tmt tmu tna tnb tni tnl tnm tnn tno tnr tns tnt to- toa tob toi tol tom ton too tor tos tot tou tra trb tri trl trm trn tro trr trs trt tru tsa tsb tsi tsl tsm tsn tso tsr tss tst tsu tta ttb tti ttl ttm ttn tto ttr tts ttt ttu tua tub tui tul tum tun tuo tur tus tut tuu ua- uaa uab uai ual uam uan uao uar uas uat uau uba ubb ubi ubl ubn ubo ubr ubs ubt ubu uia uib uii uil uim uin uio uir uis uit uiu ula ulb uli ull ulm uln ulo ulr uls ult ulu um- uma umb umi uml umm umn umo umr ums umt umu un- una unb uni unl unm unn uno unr uns unt unu uoa uob uol uom uon uoo uor uos uot ur- ura urb uri url urm urn uro urr urs urt uru usa usb usi usl usm usn uso usr uss ust usu uta utb uti utl utm utn uto utr uts utt utu uua uum uun uur uus uut uuu