scpa scpb scps scsa scsc scsd scsn scsu scua scub scud scun scup sdap sdau sdba sdcc sddc sdds sdna sdps sdsc sdss sdsu snab snad snap snas snba snca sncc sncp snda snns snpp snsd snub snus sp-a spac spad span spap spas spau spca spcc spcs spdc spdp spns sppd spps spsa spsd spsp spss spud spun spus ssaa ssab ssac ssan ssap ssas ssau ssbn ssca sscc sscp sscs ssdc ssdd ssdp ssns sspa sspc ssps sssa sssb sssc ssss suan suas sub- suba subb subd subs suc- succ sucs suda sudd suds sun- suna sunb sund sunn suns sunu sup- supa supp sups sus- susa susd susp suss susu suus uabc uaca uasa uasd uasp uaua ubac ubba ubpc ubud ucad ucan ucas ucbc ucca uccp ucdc ucdd ucpa ucpb ucsa ucsb ucsc ucsd ucsu ucua udaa udad udas udau udbc udca udds udpd udsd udun unaa unac unan unas unau unbd unca uncc uncp uncs unda unds unna unns unpa unpc unps uns- unsa unsc unus upac upas upca upcs upda upnp uppa uppc uppp uppu upsa upsc upup us-a usaa usac usad usan usap usas usba usbc usbs usca uscc uscs usda usdc usdp usds usna usnc usnu uspa uspc uspp usps ussa ussb ussc usss ussu usua usun usus uucp uuuu