sino sins siod sion sior sios sira siri sirk siro sirr sirs sisa sisd sish sisi sisk siss skad skai skan skar skhs skia skid skik skin skio skir skis skn- skon skor skra sksd skss snad snak snar snas snda sndh snhs snia snid snir snns snoa snod snoo snor snos snra snrk snrs snsd soad soak soan soar soas soda sodd sodo sods soha sohh sohn soho sohs soia soik soin soir sois soka soki sokk sokn soko son- sona sond soni sonk sono sons sood sook soon soor soos sora sord sorh sori sorn soro sorr sors sosa sosh sosi soso soss sras srhs sris srna srni srnn srno sros srsd ssaa ssan ssao ssas ssdd sshs ssid ssin ssis ssns ssra ssri ssrs sssa sssh sssi ssss