prcd prcp prcs pri- prid prii prim prin pris prmc prnd prnp prpd prps prrd prri prrm prrs prsc prsd prsi prss prud prum prus pruu psci pscu psdc psdi psdp psdr psds psid psim psip psis psnc psni psnr pspi pspp pspr psps psrd psrp pssc pssm puds pudu puid puin puir puis puiu pumi pump punc pund puns punu pupi pups pupu pur- puri purp purr purs puru pusd pusi puss puuc rccc rccs rcdc rcds rcic rcid rcis rcmp rcms rcnr rcpd rcpi rcps rcrd rcsc rcsd rcsi rcss rdcm rdms rdpc ricc rics ridc ridd ridi rids riin riis rimi rimm rims rimu rind rinn ripd ripi ripp ripr rips riri rirs risc risd risi rism risp riss risu rius rmrp rmsc rmsp rncp rncs rndc rndm rndp rnds rnin rnsp rpcs rpdp rpii rpms rppn rpps rrmc rrmp rrrr rrsp rrum rrun rscc rscn rscs rsdd rsds rsid rsis rsnn rsnr rsps rsum ruci rudd rudi rudp ruds ruid ruin ruis rumi rumm rump rums runc rund runi runn runs rupp rurc rurd ruri rurp rurs ruru rusi russ rusu ruud ruun s-ic s-ii sccc sccm sccp sccs scdc scdp scds sci- scic scid scim scin scip scir scis scmc scmm scmp scms scnd scnr scpi scpm scps scr- scrc scri scrn scrs scsc scsd scsi scsn scsr scsu scud scum scun scup scur sdcc sddc sdds sdic sdms sdpr sdps sdrc sdrs sdsc sdsm sdss sdsu sicc sici sicm sicp sics sicu sidd sidi sidr sids siim simd simi simm simp sims sind sini sinn sinp sins sinu sipc sipi sipp sips sirc siri sirp sirr sirs siru sisc sisd sisi siss sisu siui sium sius smcc smcp smdc smdr smic smid smin smis smnc smps smsc smsd smsn smsp smss smur smus sncc sncp snid snip snir snmp snns snpp snrs snsd snum snur snus spcc spcs spdc spdm spdp spdr spic spim spin spip spir spis spmd spmi spms spns sppd spps sprd spri sprm sprs spsd spsp spss spud spui spun spur spus srcc srim sris srmc srni srnn srpc srps srsd srsp sscc ssci sscp sscs ssdc ssdd ssdm ssdp ssid ssin ssis ssmc ssns sspc ssps ssrc ssri ssrm ssrs sssc sssi sssm ssss suc- succ suci sucr sucs sudd sudi suds suid suin suir suis sum- sumd sumi sump sums sumu sun- sund suni sunn suns sunu sup- supp supr sups sur- surc surd suri surn surp surr surs suru sus- susd susi susp suss susu suum suus u-rp ucci uccp ucdc ucdd ucin ucmc ucrc ucsc ucsd ucsm ucsu uddi udds udic udid udim udin udir udmc udpd udsd udun uims uipi uirr uisd umms umpc umps umri umsp umsu umus uncc unci uncp uncs undi unds uni- unic unii unin unir unis unmc unmr unni unns unpc unps unrs uns- unsc unum unus upci upcs updm upic upim upin upis upmc upnp uppc uppp uppu upri upsc upsi upup urci urds urdu uric urim urin uris uriu urmi urni urns urri ursi urss ursu urum urun urup urur urus uscc uscm uscs usdc usdm usdp usds usim usin usip usis usmc usmd usmm usmp usms usnc usnr usnu uspc uspp usps ussc ussr usss ussu usui usun usus uucp uuni uuri uusi uuuu