sccp sccs scct scfa scfc scl- sclc scls scpa scpl scps scpt scr- scra scrc scrs scsa scsc scsl scsr scst sctc sctl sctr scts sfar sfas sfca sfcc sfcs sffc sfla sflc sfls sfpa sfpc sfra sfrc sfss sftp sfts slaa slac slaf slap slas slat slcc slft sllp slpp slps slrc slrp slrs slsa slsc slst slts sp-a spac spal spap spar spas spat spca spcc spcs spfc spfs spla splc splp splr spls sppf spps sprs spsa spsp spss spst spta sptc sptr spts sraf sras srcc srct srfc srpc srps srpt srsp srta srtp srtr ssaa ssac ssap ssas ssat ssca sscc sscp sscs ssfc ssfl ssfp ssla sslc sslp sslt sspa sspc sspf sspl ssps sspt ssra ssrc ssrl ssrs sssa sssc sssf ssss ssta sstc sstl sstp ssts stac stal stap star stas stat stca stcc stcp stcs stfc stlc stlt stpf stpp stps stra strc strs stsf stss sttc sttr taa- taaf taal taar taas taat taca tacc tacl tacs tact tafa tafc taff taft tala talc tall tals tapa tapp tapr taps tapt tara tarc tarf tarp tarr tars tart tasa tasc tasp tasr tass tast tata tatr tats tatt tcap tcca tccc tcfc tcpa tctc tcts tfal tfca tfpt tfrs tfss tftc tftp tlac tlpa tlrs tpac tpap tpcp tpcs tpls tppa tppp tppr tprs tpsa tpsc tptp tptr traa trac traf tral trap tras trat trca trcc trcl trfc trfr trpa trpc trpp trps trra trst trtc trtr tsaa tsal tsar tsat tsca tscc tscp tsfc tsfl tsps tspt tssa tssf tssr tsst tstc tsts ttcp ttfa ttfc ttff ttss tttt