rrrr rrsp rsdd rsds rsee rsos rspb rspo rsps rsre rstp rsts rstu rtdt rtee rtes rtps rtss rttp rtts rubb rube rubp rubs rubu rudd rude rudo rudp ruds rued ruer rues ruet rupe rupp rupt rurd rure ruro rurp rurs ruru ruse ruso russ rust rusu rute ruto ruts rutt rutu ruud s-os sbbs sbds sber sbor sbot sbsd sbse sbsp sbst sbus sdds sdep sder sdes sdet sdot sdpr sdps sdrs sdss sdsu se-d se-e se-o se-s se-t se-u sebe sebo sebs sebt sede sedo seds seeb seed seep seer sees seet seeu seod seop sepd sepe sepo sepp sepr seps sept sepu serb serd sere sero serp serr sers sert seru sese seso sess sest set- sete seto sets sett seur sobe sobo sobp sobr sobs sobt sobu sodd sode sodo sods sodu soeo soep soes sood soop soor soos soot sopd sope sopo sopp sops sopu sorb sord sore soro sorr sors sort soru sose soso soss sost sote soto sotp sots sotu soud soue soup sour sous sout spde spdp spdr spdt speb sped spee sper spes spet spod spoo spop spor spos spot sppd spps sprd spro sprs spsd spse spso spsp spss spst sptb spto sptr spts spud spue spur spus sput srde sreb sreo sres sros srps srpt srsd srsp srtp srtr srub ssbr ssdd ssdp ssee ssep sses sset ssop ssot sspe sspo ssps sspt ssrs sssb ssss sstb sstd sstp ssts stbd stbs stds sted stee steo step ster stes stet stob stod stoe stoo stop stor stos stot stou stpd stpp stps strd stre stro strs stru stss sttd sttr stub stud stue stup stur stus stut sub- subb subd subo subs sudd sude sudo suds sued suee suer sues suet sueu suor suos sup- supe supo supp supr sups supt sur- surd sure suro surp surr surs surt suru sus- susd suse suso susp suss sust susu sute suto sutu suus tbbs tbrb tbsp tbst tbtp tddb tdes tdor tdse tdss tebo tebu tedd tede teds teed teer tees teet teor teos tepe tepp tepu ter- tere tero terp terr ters teru tesd tese teso tesp tess test tete teto tetr tets tett tetu teut tobe tobo tobs tobt tobu todd tode todo tods todt todu toed toee toer toes toet tood toor toos toot top- topd tope topo topp tops topt topu tord tore toro torp torr tors tort toru tosb tose toso toss tost tosu totd tote toto totr tots tott toup tour tous tout tpdu tped tper tppd tppp tppr tprs tpte tptp tptr tput tre- tred tree treo tres tret treu trod troe troo trop tros trot trou trpe trpp trps trsd trst trte trtr trub trud true trus trut truu tsbd tsdb tses tset tsob tsop tsos tsou tspo tsps tspt tsse tssr tsst tsts tsup ttbb tteo tter ttoe ttop ttss tttt tubb tube tubo tubr tubs tubu tude tudu tuer tues tuet tuor tuos tupe tupo tups tupu turb turd ture turo turp turr turs turt turu tusd tuss tust tute tuto tuts tutt tutu tuuo u-rp ubbe ubbo uber ubet ubod ubos ubud udds uder udet udoo udop udos udot udpd udsd udts uers uess uor- uore upbe updo uped upor upos uppe uppp uppu upse upto upup urbe urbs urde urds urdu ure- ured ures uret uro- uroo urpo urre urse urso urss ursu urte urts urup urur urus urut usbe usbr usbs usde usdo usdp usds usdt used usee user uses uset usoe usos uspo uspp usps ussb usse ussr usss usst ussu ustb uste usto ustp usts usus utep uter utes utor utpd utto uttu uuuu