nrrc nrsc nrsp nrts nscc nscs nsec nsep nser nsfc nsfs nsic nsin nsis nsnr nspc nspi nsps nsrc nssc nsse nssf nssp nssr nsss nstc nstp nsts ntcc nter ntes ntfc ntfp ntfs ntis ntpc ntrc ntsc ntsf ntss nttr pccc pcce pccs pcep pcer pcfc pcin pcip pcns pcnt pcpn pcpp pcps pcrc pcre pcrf pcse pcte pcts pece peci pecr pecs pect peec peen peep peer pees peet pefc peff pefs pein peip peir peis peit pen- penc pene peni penn pens pent pepe pepi peps per- perc pere perf peri pern perp perr pers pert pese pesi pess pest pete peti petn petr pets pett pfce pfcs pfet pfff pffr pfft pfic pfis pfit pfps pfte picc pice pici picr pics pict pien piep pier pies piet piff pifs piip pinc pine pini pinn pinp pins pint pipe pipi pipp pips pirc pire piri pirn pirr pirs pise pisi piss pist pite pitf piti pitr pits pitt pnec pnes pnet pnic pnin pnpp pnsc pntr ppcc ppci ppcs ppen pper ppic ppie ppif pppn pppp ppps pprc pprf ppsf ppss pptn ppts pptt prcc prcf prcp prcs pre- prec pree pref pren prep pres pret prfc prfs pri- prie prif prii prin pris prnp prps prri prrs prsc prse prsi prss prtc prti prtp prtr psci psec psei psfs psip psis psnc psni psnr pspi pspp pspr psps psrp pssc psse psst psts ptcc pten pter ptrf pttc rccc rccs rcep rcet rcfc rcic rcis rcnr rcpi rcps rcpt rcsc rcsi rcss rctc rcti rcts recc rece reci recp recr recs rect reef reen reep rees reet refe reff refi refn refr refs reft reif reii rein reir reis reit rene reni renn rens rent repe repi repp repr reps rept rere reri rers rert rese resi resn resp ress rest rete reti retr rets rett rfef rffc rfic rftc ricc rice rics rict rief rien riep rier ries riet rife riff rifs rift riif riin riis rine rinf rinn ripe ripi ripp ripr rips ript rire riri rirs risc rise risi risp riss rist rite riti rits ritt rncp rncs rnie rnin rnnt rnsp rntp rpcs rpet rpfc rpii rppn rpps rptn rpts rrfc rrif rrrr rrsp rscc rscn rscs rsee rsfc rsis rsnn rsnr rsps rsre rstp rsts rtcc rtce rtee rtei rtes rtfc rtns rtps rtss rttp rtts s-ic s-ii sccc scce sccp sccs scct scec scee scep scer scet scfc scfe scfi sci- scic scie scif scin scip scir scis scit scnr scnt scpe scpi scps scpt scr- scrc scre scri scrn scrs scsc scsi scsn scsr scst sctc sctn sctr scts se-c se-e se-f se-i se-n se-s se-t sec- secc sece secn secr secs sect seec seef seen seep seer sees seet seff sefi seft seie seif seii sein seip seir seis seit sene seni senn senr sens sent sepe sepi sepn sepp sepr seps sept serc sere serf seri sern serp serr sers sert sesc sese sesi sess sest set- setc sete setf seti sets sett sfcc sfcs sfer sffc sfne sfnt sfpc sfrc sfss sftp sfts sicc sice sici sicp sics siec sief sien sier sies sife siff sifr sift siit sine sini sinn sinp sins sint sipc sipe sipi sipp sips sipt sirc sire sirf siri sirp sirr sirs sirt sisc sise sisi siss sist sit- sitc site siti sitn sits sitt sncc sncf sncp snee snep sner snes snet snie snip snir snit snns snpp snrs snte sntr spcc spcs spec spee spef spen sper spes spet spfc spfs spic spie spin spip spir spis spit spne spns sppf spps spri sprs spse spsp spss spst sptc sptr spts srcc srct srec sres srfc srfi sris srni srnn srpc srps srpt srsp srtp srtr sscc ssce ssci sscp sscs ssec ssee ssep sses sset ssfc ssfp ssin ssis ssit ssns sspc sspe sspf ssps sspt ssrc ssri ssrs sssc sssf sssi ssss sstc sstp ssts stcc stcp stcs stec stee stef sten step ster stes stet stfc stfn stic stie stif stip stir stis stit stnn stnr stns stpf stpp stps strc stre stri strn strs stsf stsi stss sttc sttr tccc tcep tcfc tcnn tctc tcts tecr tecs tect teec teef teen teer tees teet tefc teff tefi teft teic teie tein teip teir teis tenc tene teni tenn tenp tens tent tepe tepi tepp ter- terc tere terf teri tern terp terr ters tesc tese tesp tess test tete teti tetr tets tett tfec tfin tfnp tfpt tfrs tfsi tfss tftc tftp ticc tice tics tie- tiee tief tiei tien tiep tier ties tiet tiff tift tiit tinc tine tini tinn tins tint tip- tipc tipe tipi tipp tips tipt tire tiri tirr tirs tise tisi tiss tist titc tite titi titp tits titt tncc tnef tnes tnfc tnsp tnts tpcp tpcs tper tpir tppp tppr tprs tpsc tpte tptp tptr trcc tre- trec tree tref trei tren tres tret trfc trfr tri- tric trie trif trin trip tris trit trpc trpe trpn trpp trps trsi trst trtc trte trtr tscc tscp tsec tsen tses tset tsfc tsin tsis tspn tsps tspt tsse tssf tssi tssr tsst tstc tsts ttcn ttcp tten tter ttfc ttff ttfn ttss tttt