scsc scsd scsl scsr scst scsu sctc sctd sctl sctr scts scub scud scul scur scut sdcc sddc sdds sder sdes sdet sdlc sdls sdlt sdrc sdrs sdsc sdsl sdss sdsu se-c se-d se-e se-s se-t se-u sebe sebs sebt sec- secc secd sece secr secs sect secu sede seds seeb seec seed seel seer sees seet seeu selb seld sele sell sels selt selu serb serc serd sere serr sers sert seru sesc sese sess sest set- setc sete setl sets sett seul seur slcc slcd slcu slds sleb sled slee sler sles slet slrc slre slrs slsc slst slsu slts slub sluc slud slue slur slut srbc srcc srct srde sreb srec sres srsd srtr srub ssbr sscc ssce sscs ssdc ssdd ssec ssee sses sset sslc ssle sslt ssrc ssrl ssrs sssb sssc ssss sstb sstc sstd sstl ssts stbc stbd stbs stcc stcs stcu stds stec sted stee stel ster stes stet stlc stld stle stlt strc strd stre strs stru stss sttc sttd sttr stub stuc stud stue stul stur stus stut sub- subb subd subl subs suc- succ sucr sucs sudd sude suds sued suee suel suer sues suet sueu sul- sulc suld sule sull sult sulu sur- surc surd sure surr surs surt suru sus- susd suse suss sust susu sute sutu suus tbbs tbcb tbcc tbcd tbce tbrb tbst tcbs tccc tccu tcdd tctc tcts tcul tddb tdes tdls tdse tdss tebu tecl tecr tecs tect tedd tede teds teec teed teel teer tees teet tel- telc teld tele tell tels telt telu ter- terc tere terr ters teru tesc tesd tese tesl tess test tete tetr tets tett tetu teut tldr tlrs trcc trcl tre- trec tred tree tres tret treu trsd trst trtc trte trtr trub truc trud true trus trut truu tsbc tsbd tscc tsdb tsec tses tset tsse tssr tsst tstc tsts ttbb tter ttss tttt ttul tubb tube tubr tubs tubu tucc tude tudu tuel tuer tues tuet tule tull tulu turb turc turd ture turr turs turt turu tusc tusd tuss tust tute tutl tuts tutt tutu ubbe uber ubet uble ubls ubud ucbc ucdc ucdd ucel uces ucrc ucsb ucsc ucsd ucst ucsu ucut udbc udds udel uder udet udsd udsl udts uele uell uers uess ulbc ulcc ulde uleb ulee ules ulle ullr ults ultt ulul ulus urbe urbs urde urds urdu ure- ured ures uret urle urls urre urse urss ursu urte urts urur urus urut usbc usbe usbl usbr usbs uscc usce uscs usdc usde usdl usds usdt used usee usel user uses uset usle uslu ussb ussc usse ussr usss usst ussu ustb ustc uste usts usul usus utec utel uter utes utsc utsl uttu uulu uuuu