scsd scsl scso scst sctc sctd sctl scto scts sdcc sdco sddc sdds sdfc sdla sdlc sdls sdlt sdot sdsc sdsf sdsl sdss sfas sfca sfcc sfco sfcs sfdc sffc sfla sflc sfls sfos sfss sfts slaa slac slad slaf slas slat slcc slcd slds slft sloc slod sloo slos slot slsa slsc slst slts soad soal soas soat soca socl soco socs soda sodd sodo sods sofa sofo soft sola sold solf soll solo sols solt sood soof sool soos soot sosa soso soss sost sota sotc sotl soto sots ssaa ssac ssao ssas ssat ssca sscc sscs ssdc ssdd ssdf ssfc ssfl ssla sslc sslt ssoc ssot sssa sssc sssf ssss ssta sstc sstd sstl ssts stac stad stal stas stat stca stcc stcs stds stfc stlc stld stlo stlt stoa stod stof stol stoo stos stot stsf stss sttc sttd taa- taaf taal taas taat taca tacc tacl taco tacs tact tada tado tads tafa tafc taff tafo taft tala talc tall talo tals taoa taos tasa tasc tass tast tata tato tats tatt tcad tcca tccc tcdd tcfc tcos tctc tcts tdac tdal tdff tdls tdss tfal tfca tfdc tfot tfsd tfss tftc tlac tlco tlos toad toal toas toat toca toco toda todd todo tods todt tofa toff tofo toft tol- tola told toll tolo tolt tooa tood toof tool toos toot tosa tosc toso toss tost tota totc totd toto tots tott tsaa tsal tsao tsat tsca tscc tsfc tsfl tsol tsos tssa tssf tsst tstc tsts ttfa ttfc ttff ttss tttt