sig sih sii sil sin sio sip sis sit siu slc slg slh sli sll sln slo slp sls slt slu snc sng sni snl snn sno snp sns snt snu soc sog soh soi sol son soo sop sos sot sou spc spg sph spi spl spn spo spp sps spt spu ss- ssc ssg ssh ssi ssl ssn sso ssp sss sst ssu stc stg sth sti stl stn sto stp sts stt stu suc sug suh sui sul sun suo sup sus sut suu tcc tcg tch tci tcl tcn tco tcp tcs tct tcu tgc tgg tgh tgi tgl tgn tgo tgp tgs tgt tgu th- thc thg thh thi thl thn tho thp ths tht thu tic tig tih tii til tin tio tip tis tit tiu tlc tlg tlh tli tll tln tlo tlp tls tlt tlu tnc tng tnh tni tnl tnn tno tnp tns tnt to- toc tog toh toi tol ton too top tos tot tou tpc tpg tph tpi tpl tpn tpo tpp tps tpt tpu tsc tsg tsh tsi tsl tsn tso tsp tss tst tsu ttc ttg tth tti ttl ttn tto ttp tts ttt ttu tuc tug tuh tui tul tun tuo tup tus tut tuu ucc ucg uch uci ucl ucn uco ucp ucs uct ucu ugc ugg ugh ugi ugl ugn ugo ugp ugs ugt ugu uhc uhh uhi uhl uho uhp uhs uht uhu uic uig uii uil uin uio uip uis uit uiu ulc ulg uli ull uln ulo ulp uls ult ulu un- unc ung unh uni unl unn uno unp uns unt unu uoc uog uol uon uoo uop uos uot up- upc upg uph upi upn upo upp ups upt upu usc usg ush usi usl usn uso usp uss ust usu utc uth uti utl utn uto utp uts utt utu uuc uug uun uus uut uuu