sles sllp sloc sloe sloo slop slos slpp slps slrc slre slrp slrs slsa slsc slsu sluc slue slup slur soal soap soar soas soca soce socl soco socr socs soea soec soel soeo soep soes sola sole soll solo solp solr sols sool soop soor soos sopa sope sopo sopp sops sopu sora sore soro sorr sors soru sosa sose soso soss soue soul soup sour sous sp-a spac spae spal spap spar spas spau spca spcc spco spcs spea spec spee spel sper spes spla splc sple splo splp splr spls spoc spoo spop spor spos spps spro sprs spsa spse spso spsp spss spue spur spus sras srcc srec sreo sres sros srpc srps srsp ssaa ssac ssao ssap ssas ssau ssca sscc ssce sscp sscs ssec ssee ssep sses ssla sslc ssle sslp ssoc ssop sspa sspc sspe sspl sspo ssps ssra ssrc ssrl ssrs sssa sssc ssss suar suas suc- succ sucr sucs suee suel suer sues sueu sul- sula sulc sule sull sulo sulp sulu suor suos sup- supa supe supo supp supr sups sur- sura surc sure suro surp surr surs suru sus- susa suse suso susp suss susu suus u-rp uaca uaes uaoc uarc uars uaru uasa uasp uaua ucal ucar ucas ucca uccp ucea ucel uces ucla ucos ucpa ucrc ucsa ucsc ucsu ucua uele uell uers uess ulaa ulae ular ulas ulcc ulco ulea ulee uleo ules ulla ulle ullo ullr ulo- uloc ulos ulsa ulua ulul ulus uocc uolc uor- uore upac upal upar upas upca upcs upla uplo upor upos uppa uppc uppe uppp uppu upra upsa upsc upse upup urac ural urao urap uras urau urca ure- urea ures urla urle urls uro- uroa urol uroo urpo urra urre ursa urse urso urss ursu urup urur urus us-a usaa usac usal usap usar usas usca uscc usce usco uscs usea usee usel user uses usle uslp uslu usoc usoe usos uspa uspc uspo uspp usps usra ussa ussc usse ussr usss ussu usua usul usus uucp uulu uuoc uuuu