stre strn strs stss sttc sttr tccc tcep tcnn tctc tcts tecl tecr tecs tect teec teel teen teer tees teet tel- telc tele tell teln tels telt tenc tene tenn tenp tens tent tepe tepp ter- terc tere tern terp terr ters tesc tese tesl tesp tess test tete tetr tets tett tlen tlrs tncc tnes tnsp tnts tpcp tpcs tper tpls tppp tppr tprs tpsc tpte tptp tptr trcc trcl tre- trec tree tren tres tret trpc trpe trpn trpp trps trst trtc trte trtr tscc tscp tsec tsen tses tset tspn tsps tspt tsse tssr tsst tstc tsts ttcn ttcp tten tter ttss tttt