siou sipa sipi sipo sipp sips sisa sisi siss sisu siui sius sl-i slaa slab slai slap slas slau slbp slib slip sllp slob sloo slop slos slpi slpp slps slsa slsu slub slup soal soap soas soba sobo sobp sobs sobu soia soil sois sola soli soll solo solp sols sool soop soos sopa sopi sopo sopp sops sopu sosa sosi soso soss soul soup sous sp-a spal spap spas spau spia spib spio spip spis spla splo splp spls spoo spop spos spps spsa spso spsp spss spui spus ssaa ssab ssao ssap ssas ssau ssis ssla sslp ssop sspa sspl sspo ssps sssa sssb sssi ssss suas sub- suba subb subi subl subo subs suio suis sul- sula suli sull sulo sulp sulu suos sup- supa supo supp sups sus- susa susi suso susp suss susu suus uasa uasp uaua ubal ubba ubbi ubbo ubii ubis ubla ubli ublo ubls ubos uipi ulaa ulai ulas ulla ulli ullo ulo- ulos ulsa ulua ulul ulus upal upas upis upla uplb uplo upos uppa uppp uppu upsa upsi upup us-a usaa usal usap usas usba usbl usbs usia usip usis uslp uslu usoi usos uspa uspo uspp usps ussa ussb usss ussu usua usui usul usus uulu uusi uuuu