rppn rpps rptn rpts rrrr rrsp rscc rscn rscs rsis rsnn rsno rsnr rsos rspo rsps rstp rsts rtcc rtns rtps rtss rttp rtts s-ic s-ii s-os sccc sccp sccs scct sci- scic scin scio scip scir scis scit scnr scnt scon scoo scop scor scot scox scpi scpo scps scpt scr- scrc scri scrn scrs scsc scsi scsn scso scsr scst sctc sctn scto sctr scts sicc sici sico sicp sics siit sini sinn sino sinp sins sint sion siop sior sios siot siox sipc sipi sipo sipp sips sipt sirc siri siro sirp sirr sirs sirt sisc sisi siss sist sit- sitc siti sitn sito sits sitt sixo sixt sixx sncc snco sncp snip snir snit snns snoc snoo snop snor snos snot snpo snpp snrs sntr soci soco socr socs socx soic soin soir sois soit son- soni sono sons sont soon soop soor soos soot sopi sopo sopp sops sori sorn soro sorr sors sort sosi soso soss sost sotc sotn soto sotp sots soxs spcc spco spcs spic spin spio spip spir spis spit spix spns spoc spon spoo spop spor spos spot spox spps spri spro sprs spso spsp spss spst sptc spto sptr spts srcc srct sris srni srnn srno sros srpc srps srpt srpx srsp srtp srtr sscc ssci sscp sscs ssin ssis ssit ssns ssoc ssop ssot sspc sspo ssps sspt sspx ssrc ssri ssrs sssc sssi ssss sstc sstp ssts stcc stcp stcs stic stio stip stir stis stit stix stnn stnr stns ston stoo stop stor stos stot stox stpp stps strc stri strn stro strs stsi stss sttc sttr tccc tcnn tcon tcos tcpo tctc tcts ticc tico tics tiit tinc tini tinn tino tins tint tion tiop tios tip- tipc tipi tipo tipp tips tipt tiri tiro tirr tirs tisi tiso tiss tist titc titi tito titp tits titt tixt tncc tnsp tnts toci toco tois toit toni tonn tono tons toon toor toos toot top- topi topo topp tops topt torc tori torn toro torp torr tors tort torx tosc tosi toso toss tost tosx totc toti toto totr tots tott tox- toxi toxo toxs toxt tpcp tpcs tpir tpon tppp tppr tprs tpsc tptp tptr trcc tri- tric trin trio trip tris trit trix trno troc troi tron troo trop tros trot trox trpc trpn trpp trps trsi trst trtc trtr tscc tscp tsin tsis tsix tsoi tsop tsos tspn tspo tsps tspt tssi tssr tsst tstc tsts ttcn ttcp tton ttop ttss tttt txcn txii txtr xcii xcis xcon xcri xico xics xiii xion xisi xist xito xixi xoco xois xorn xoro xorp xors xoxo xpcc xpin xpot xpto xsin xson xtro xtsr xxii xxix xxxi xxxo xxxx