sbca sbcc sbcs sbsa sbsp sbus scaa scab scac scan scap scas scba sccc sccp sccs scna scob scon scoo scop scpa scpb scpo scps scsa scsc scsn scso scsu scua scub scun scup snab snap snas snba snca sncc snco sncp snns snoa snob snoc snoo snop snos snpo snpp snub snus soan soap soas soba sobo sobp sobs sobu soca soco socs son- sona sono sons sonu soon soop soos sopa sopo sopp sops sopu sosa soso soss soun soup sous sp-a spac span spap spas spau spca spcc spco spcs spns spoc spon spoo spop spos spps spsa spso spsp spss spun spus ssaa ssab ssac ssan ssao ssap ssas ssau ssbn ssca sscc sscp sscs ssns ssoc ssop sspa sspc sspo ssps sssa sssb sssc ssss suan suas sub- suba subb subo subs suc- succ sucs sun- suna sunb sunn suno suns sunu suos sup- supa supo supp sups sus- susa suso susp suss susu suus uabc uaca uaoc uasa uasp uaua ubac ubba ubbo uboc ubon ubos ubpc ucan ucas ucbc ucca uccp ucon ucos ucpa ucpb ucsa ucsb ucsc ucsu ucua unaa unac unan unas unau unca uncc unco uncp uncs unna unno unns unon unop unos unpa unpc unps uns- unsa unsc unso unus uocc upac upas upca upcs upnp upon upos uppa uppc uppp uppu upsa upsc upup us-a usaa usac usan usap usas usba usbc usbs usca uscc usco uscs usna usnc usno usnu usoc usos uspa uspc uspo uspp usps ussa ussb ussc usss ussu usua usun usus uucp uuno uuoc uuuu