snr sns snt snu sob sog soh soi sol son soo sor sos sot sou sr- srb srg srh sri srl srn sro srr srs srt ss- ssb ssg ssh ssi ssl ssn sso ssr sss sst ssu stb stg sth sti stl stn sto str sts stt stu sub sug suh sui sul sun suo sur sus sut suu tbb tbg tbh tbi tbl tbn tbo tbr tbs tbt tbu tgb tgg tgh tgi tgl tgn tgo tgr tgs tgt tgu th- thb thg thh thi thl thn tho thr ths tht thu tib tig tih tii til tin tio tir tis tit tiu tlg tlh tli tll tln tlo tlr tls tlt tlu tnb tng tnh tni tnl tnn tno tnr tns tnt to- tob tog toh toi tol ton too tor tos tot tou trb trg trh tri trl trn tro trr trs trt tru tsb tsg tsh tsi tsl tsn tso tsr tss tst tsu ttb ttg tth tti ttl ttn tto ttr tts ttt ttu tub tug tuh tui tul tun tuo tur tus tut tuu ubb ubg ubh ubi ubl ubn ubo ubr ubs ubt ubu ugb ugg ugh ugi ugl ugn ugo ugr ugs ugt ugu uhb uhh uhi uhl uho uhr uhs uht uhu uib uig uii uil uin uio uir uis uit uiu ulb ulg uli ull uln ulo ulr uls ult ulu un- unb ung unh uni unl unn uno unr uns unt unu uob uog uol uon uoo uor uos uot ur- urb urg uri url urn uro urr urs urt uru usb usg ush usi usl usn uso usr uss ust usu utb uth uti utl utn uto utr uts utt utu uug uun uur uus uut uuu