sore soro sorr sors sort sose soso soss sost sotc sote soto sots srbc srcc srct srde sreb srec sreo sres sros srsd srtr ssbr sscc ssce sscs ssdc ssdd ssec ssee sses sset ssoc ssot ssrc ssrs sssb sssc ssss sstb sstc sstd ssts stbc stbd stbs stcc stcs stds stec sted stee steo ster stes stet stob stod stoe stoo stor stos stot strc strd stre stro strs stss sttc sttd sttr tbbs tbcb tbcc tbcd tbce tbrb tbst tcbs tccc tcdd tcos tctc tcts tddb tdes tdor tdse tdss tebo teco tecr tecs tect tedd tede teds teec teed teer tees teet teor teos ter- terc tere tero terr ters tesc tesd tese teso tess test tete teto tetr tets tett tobe tobo tobs tobt toce toco todd tode todo tods todt toed toee toer toes toet tood toor toos toot torc tord tore toro torr tors tort tosb tosc tose toso toss tost totc totd tote toto totr tots tott trcc tre- trec tred tree treo tres tret troc trod troe troo tros trot trsd trst trtc trte trtr tsbc tsbd tscc tsdb tsec tses tset tsob tsos tsse tssr tsst tstc tsts ttbb tteo tter ttoe ttss tttt