slub sluc slud slur slut sobo sobr sobs sobt sobu socl soco socr socs sodd sodo sods sodu sold soll solo solr sols solt sood sool soor soos soot sorb sord soro sorr sors sort soru soso soss sost sotc sotl soto sots sotu soud soul sour sous sout srbc srcc srct sros srsd srtr srub ssbr sscc sscs ssdc ssdd sslc sslt ssoc ssot ssrc ssrl ssrs sssb sssc ssss sstb sstc sstd sstl ssts stbc stbd stbs stcc stcs stcu stds stlc stld stlo stlt stob stod stol stoo stor stos stot stou strc strd stro strs stru stss sttc sttd sttr stub stuc stud stul stur stus stut sub- subb subd subl subo subs suc- succ sucr sucs sudd sudo suds sul- sulc suld sull sulo sult sulu suor suos sur- surc surd suro surr surs surt suru sus- susd suso suss sust susu suto sutu suus tbbs tbcb tbcc tbcd tbrb tbst tcbs tccc tccu tcdd tcos tctc tcts tcul tddb tdls tdor tdss tlco tldr tlos tlrs tobo tobs tobt tobu toco todd todo tods todt todu tol- told toll tolo tolt tolu tood tool toor toos toot torc tord toro torr tors tort toru tosb tosc toso toss tost tosu totc totd toto totr tots tott toul tour tous tout trcc trcl troc trod troo tros trot trou trsd trst trtc trtr trub truc trud trus trut truu tsbc tsbd tscc tsdb tsob tsol tsos tsou tssr tsst tstc tsts ttbb ttss tttt ttul tubb tubo tubr tubs tubu tucc tuco tudu tull tulo tulu tuor tuos turb turc turd turo turr turs turt turu tusc tusd tuss tust tutl tuto tuts tutt tutu tuuo ubbo ublo ubls uboc ubod ubos ubud ucbc ucdc ucdd ucos ucrc ucsb ucsc ucsd ucst ucsu ucut udbc udds udoo udos udot udsd udsl udts ulbc ulcc ulco ullo ullr ulo- uloc ulos ulto ults ultt ulul ulus uocc uolc uor- urbs urds urdu urls uro- urol uroo urso urss ursu urts urur urus urut usbc usbl usbr usbs uscc usco uscs usdc usdl usdo usds usdt uslu usoc usos ussb ussc ussr usss usst ussu ustb ustc usto usts usul usus utor utsc utsl utto uttu uulu uuoc uuuu