sisy siyi smhs smin smis smon smos smoy smps smry smsh smsn smsp smss snhs snip snir snmp snns snom snoo snop snor snos snpo snpp snrs snsy snys sohh sohm sohn soho sohp sohs soim soin soir sois somi somm somn somo somy son- soni sono sons sony soom soon soop soor soos sooy soph sopi sopo sopp sops sopy sorh sori sorm sorn soro sorr sors sory sosh sosi soso soss soyo soys sphr sphs spim spin spio spip spir spis spmi spms spns spon spoo spop spor spos spoy spps spri sprm spro sprs spry spso spsp spss spy- spyh spyr spys srhs srim sris srni srnn srno sros srps srsp sshs ssin ssis ssns ssop sspo ssps ssri ssrm ssrs sssh sssi sssm ssss syis sym- symi syms syn- syns syny syon syph sypo syro syrs syry syso syss yhis yhon yins yips yirm yirn yirr yiss ymir ymns ympn ynoh ynon ynsh yohn yoho yomi yomo yomp yoni yono yons yoon yoop yopo yopy yori yorn yoro yory yosh yosi yoso yoyn yoyo ypir ypsi yrho yrin yron yryn ysii ysnp yson ysop yspi yssh yyyy