sbsi sbsp sbus siaa siab siai sial sias siau siba sibi sibs sibu sil- sila sili sill sils silu sipa sipi sipp sips sira siri sirp sirr sirs siru sisa sisi siss sisu siui sius sl-i slaa slab slai slap slas slau slbp slib slip slir sllp slpi slpp slps slrp slrs slsa slsu slub slup slur sp-a spal spap spar spas spau spia spib spip spir spis spla splp splr spls spps spri sprs spsa spsp spss spui spur spus sras srib sris srps srsp srub ssaa ssab ssap ssas ssau ssbr ssis ssla sslp sspa sspl ssps ssra ssri ssrl ssrs sssa sssb sssi ssss suar suas sub- suba subb subi subl subs suir suis sul- sula suli sull sulp sulu sup- supa supp supr sups sur- sura suri surp surr surs suru sus- susa susi susp suss susu suus u-rp uair uars uaru uasa uasp uaua ubal ubar ubba ubbi ubii ubir ubis ubla ubli ubls ubra uipi uira uirr ulaa ulai ular ulas ulla ulli ullr ulsa ulua ulul ulus upal upar upas upis upla uplb uppa uppp uppu upra upri upsa upsi upup urai ural urap uras urau urba urbi urbs uria urib uris uriu urla urls urra urri ursa ursi urss ursu urup urur urus us-a usaa usal usap usar usas usba usbl usbr usbs usia usip usis uslp uslu uspa uspp usps usra ussa ussb ussr usss ussu usua usui usul usus uulu uuri uusi uuuu