sino sinp sins sinu siod sion siop sios siou sipi sipo sipp sips sisd sisi siss sisu siui sium sius smid smif smin smis smod smof smon smos smps smsd smsn smsp smss smus snfu snid snip snmp snns snod snom snoo snop snos snpo snpp snsd snum snus sodd sodo sods sodu sofi sofo soif soim soin sois somi somm somn somo son- sond soni sono sons sonu sood soof soom soon soop soos sopd sopi sopo sopp sops sopu sosi soso soss soud souf soum soun soup sous spdf spdm spdp spfs spim spin spio spip spis spmd spmi spms spns spod spon spoo spop spos sppd sppf spps spsd spso spsp spss spud spui spun spus ssdd ssdf ssdm ssdp ssfp ssid ssin ssis ssns ssop sspf sspo ssps sssf sssi sssm ssss sudd sudi sudo suds suf- suff sufi sufs sufu suid suin suio suis sum- sumd sumi sumo sump sums sumu sun- sund suni sunn suno suns sunu suos sup- supo supp sups sus- susd susi suso susp suss susu suum suus uddi udds udid udim udin udon udoo udop udos udpd udsd udun ufip ufms ufos uims uipi uisd umff ummo umms umno umps umsp umsu umus undi undo unds unfd unfp uni- unif unii unin unio unis unni unno unns unon unop unos unps uns- unso unum unus uofm uofo uomo updf updm updo upim upin upis upnp upon upos uppp uppu upsi upup usdf usdm usdo usdp usds usfi usfs usif usim usin usip usis usmd usmm usmp usms usno usnu usoi usos uspo uspp usps ussf usss ussu usui usun usus uuni uuno uusi uuuu