sssc sssh sssi ssss sstc sstd ssth ssts stcc stch stcs stds sths stic stid stih stio stir stis stit stod stoo stor stos stot strc strd stri stro strs stsi stss sttc sttd sttr tccc tcdd tch- tchh tchi tcho tchr tchs tcos tcsh tctc tcts tdhs tdis tdor tdri tdss thch thdr thds thi- thic thio thir this thoo thor thos thot thri thro thsd thsr thss thtr thts ticc tich tico tics tidc tidd tids tiht tiit tios tird tiri tiro tirr tirs tish tisi tiso tiss tist titc tith titi tito tits titt toch toci toco todd todi todo tods todt tohi toho toid tois toit tood tooh toor toos toot torc tord tori toro torr tors tort tosc tosh tosi toso toss tost totc totd toth toti toto totr tots tott trcc trhs tri- tric trio tris trit troc trod troi troo tros trot trsd trsi trst trtc trtr tscc tshi tshs tsid tsis tsoi tsos tssi tssr tsst tstc tsts ttss tttt