sihr sihs sihu siim simd simh simi simm simo simp sims siod siop sior sios siou sipc sipi sipo sipp sips sirc siri siro sirp sirr sirs siru sisc sisd sish sisi siss sisu siui sium sius smcc smch smcp smdc smdr smhs smic smid smis smoc smod smos smps smsc smsd smsh smsp smss smur smus soch soci socm soco socr socs sodd sodo sods sodu sohh sohm soho sohp sohs sohu soic soim soir sois somi somm somo sood soom soop soor soos sopd soph sopi sopo sopp sops sopu sord sorh sori sorm soro sorr sors soru sosh sosi soso soss soud soum soup sour sous spcc spco spcs spdc spdm spdp spdr sphr sphs spic spim spio spip spir spis spmd spmi spms spoc spod spoo spop spor spos sppd spps sprd spri sprm spro sprs spsd spso spsp spss spud spui spur spus srcc srch srhs srim sris srmc sros srpc srps srsd srsp sscc ssci sscp sscs ssdc ssdd ssdm ssdp sshs ssid ssis ssmc ssoc ssop sspc sspo ssps ssrc ssri ssrm ssrs sssc sssh sssi sssm ssss suc- succ such suci sucr sucs sudd sudh sudi sudo suds suhi suho suhr suid suio suir suis sum- sumd sumi sumo sump sums sumu suoh suor suos sup- suph supo supp supr sups sur- surc surd suri suro surp surr surs suru sus- susd susi suso susp suss susu suum suus u-rp ucci uccp ucdc ucdd uchi ucho uchs ucio ucmc ucom ucos ucph ucrc ucsc ucsd ucsm ucsu uddi udds udic udid udim udir udmc udoh udoo udop udos udpd udsd uh-d uhid uhoh uhrs uhss uhuh uhup uims uipi uirr uisd umhs ummo umms umor umpc umph umps umri umsp umsu umus uocc uomo uor- upci upcs updm updo upic upim upis upmc upor upos uppc uppp uppu upri upsc upsi upup urch urci urds urdu urho uric urim uris uriu urmi uro- urom uroo urpo urrh urri ursi urso urss ursu urum urup urur urus uscc usch uscm usco uscs usdc usdm usdo usdp usds ushi usho ushr ushs ushu usim usip usis usmc usmd usmm usmp usms usoc usoi usos uspc uspo uspp usps ussc ussr usss ussu usui usus uucp uuoc uuri uusi uuuu