sinp sins sinu sion siop sios siou sipa sipi sipo sipp sips sisa sisi siss sisu siui sius snab snap snas snba snia snib snip snns snoa snob snoo snop snos snpo snpp snub snus soan soap soas soba sobo sobp sobs sobu soia soin sois son- sona soni sono sons sonu soon soop soos sopa sopi sopo sopp sops sopu sosa sosi soso soss soun soup sous sp-a span spap spas spau spia spib spin spio spip spis spns spon spoo spop spos spps spsa spso spsp spss spui spun spus ssaa ssab ssan ssao ssap ssas ssau ssbn ssin ssis ssns ssop sspa sspo ssps sssa sssb sssi ssss suan suas sub- suba subb subi subo subs suin suio suis sun- suna sunb suni sunn suno suns sunu suos sup- supa supo supp sups sus- susa susi suso susp suss susu suus uasa uasp uaua ubba ubbi ubbo ubii ubis ubon ubos uipi unaa unai unan unas unau uni- unia unii unin unio unis unna unni unno unns unon unop unos unpa unps uns- unsa unso unus upas upin upis upnp upon upos uppa uppp uppu upsa upsi upup us-a usaa usan usap usas usba usbs usia usin usip usis usna usno usnu usoi usos uspa uspo uspp usps ussa ussb usss ussu usua usui usun usus uuni uuno uusi uuuu