spoo spop spos sppd spps spsd spse spso spsp spss spud spue spus sscc ssce sscp sscs ssdc ssdd ssdp ssec ssee ssep sses sslc ssle sslp ssoc ssop sspc sspe sspl sspo ssps sssc ssss suc- succ sucs sudd sude sudo suds sued suee suel sues sueu sul- sulc suld sule sull sulo sulp sulu suos sup- supe supo supp sups sus- susd suse suso susp suss susu suus uccp ucdc ucdd ucel uces ucos ucsc ucsd ucsu udds udel udoo udop udos udpd udsd udsl uele uell uess ulcc ulco ulde ulee uleo ules ulle ullo ulo- uloc ulos ulul ulus uocc uolc upcs updo uped uplo upos uppc uppe uppp uppu upsc upse upup uscc usce usco uscs usdc usde usdl usdo usdp usds used usee usel uses usle uslp uslu usoc usoe usos uspc uspo uspp usps ussc usse usss ussu usul usus uucp uulu uuoc uuuu