sira siri sirr sirs siru sisa sisi siss sisu siui sius sl-i slaa slab slai slan slas slau slib slir slln slrn slrs slsa slsu slub slur snab snar snas snba snia snib snir snla snns snra snrs snub snur snus sras srib sris srna srni srnn srub ssaa ssab ssan ssas ssau ssbn ssbr ssin ssis ssla ssns ssra ssri ssrl ssrs sssa sssb sssi ssss suan suar suas sub- suba subb subi subl subs suin suir suis sul- sula suli sull sulu sun- suna sunb suni sunn suns sunu sur- sura suri surn surr surs suru sus- susa susi suss susu suus uair uars uaru uasa uaua ubal ubar ubba ubbi ubii ubir ubis ubla ubli ubls ubra uira uirr ulaa ulai ulan ular ulas ulla ulli ullr ulna ulsa ulua ulul ulus unaa unai unal unan unar unas unau uni- unia unii unin unir unis unna unni unns unra unrs uns- unsa unus urai ural uran uras urau urba urbi urbs uria urib urin uris uriu urla urls urna urni urns urra urri ursa ursi urss ursu urun urur urus us-a usaa usal usan usar usas usba usbl usbr usbs usia usin usis uslu usna usnr usnu usra ussa ussb ussr usss ussu usua usui usul usun usus uulu uuni uuri uusi uuuu