sicu siim simi simm simo simp sims siop sior sios siou sipc sipi sipo sipp sips sirc siri siro sirp sirr sirs siru sisc sisi siss sisu siui sium sius smcc smcp smic smis smoc smos smps smsc smsp smss smur smus soci socm soco socr socs soic soim soir sois somi somm somo soom soop soor soos sopi sopo sopp sops sopu sori sorm soro sorr sors soru sosi soso soss soum soup souq sour sous spcc spco spcs spic spim spio spip spir spis spmi spms spoc spoo spop spor spos spps spqr spri sprm spro sprs spso spsp spss spui spur spus sqcm sqmi sqms srcc srim sris srmc sros srpc srps srsp sscc ssci sscp sscs ssis ssmc ssoc ssop sspc sspo ssps ssrc ssri ssrm ssrs sssc sssi sssm ssss suc- succ suci sucr sucs suio suir suis sum- sumi sumo sump sums sumu suor suos sup- supo supp supr sups suqs sur- surc suri suro surp surr surs suru sus- susi suso susp suss susu suum suus u-rp ucci uccp ucio ucmc ucom ucos ucrc ucsc ucsm ucsu uims uipi uirr ummo umms umor umpc umps umri umsp umsu umus uocc uomo uor- upci upcs upic upim upis upmc upor upos uppc uppp uppu upri upsc upsi upup uqcc urci uric urim uris uriu urmi uro- urom uroo urpo urri ursi urso urss ursu urum urup uruq urur urus uscc uscm usco uscs usim usip usis usmc usmm usmp usms usoc usoi usos uspc uspo uspp usps ussc ussr usss ussu usui usus uucp uuoc uuri uusi uuuu