rasl rass rasu raua raub rauc raue raul raus rbbb rbbr rbbs rbcl rble rbsl rbss rcac rcas rcbc rccb rccc rccs rcle rcls rcsa rcsc rcsl rcss rea- reac reae real rear reas reau reba rebb rebe rebs rebu reca recc rece recr recs recu reeb reel rees rela relb rele rell rels rera rere rers reru resa rese ress reue reul reus reuu rlab rlcs rlee rleu rlls rlua rras rrle rrrr rsaa rscc rscs rsee rslc rsre rssa rssl rsua ruas ruba rubb rube rubs rubu ruca ruce ruel ruer rues rula rule rull rura rurc rure rurs ruru rusa ruse russ rusu sa-c saab saac saae saal saar saas saba sabb sabc sabe sabr sabs sabu saca sacc sace sacr sacs sacu saeb sael saer saes sala salc sale sall sals salu sara sarc sare sarl sarr sars saru sasa sasc sase sasl sass saua sauc saue saul saur saus sbaa sbac sbar sbas sbbs sbca sbcc sbcs sber sbsa sbse sbus scaa scab scac scal scar scas scba sccc scce sccl sccs scea scec scee scel scer scl- sclc scls scr- scra scrc scre scrs scsa scsc scsl scsr scsu scua scub scul scur se-c se-e se-s se-u seaa seab seac seal sear seas seau seba sebe sebs sec- seca secc sece secr secs secu seea seeb seec seel seer sees seeu sela selb sele sell sels selu sera serb serc sere serr sers seru sesa sesc sese sess seul seur slaa slab slac slae slas slau slcc slcu slea sleb slee sler sles slrc slre slrs slsa slsc slsu slub sluc slue slur sras srbc srcc sreb srec sres srub ssaa ssab ssac ssas ssau ssbr ssca sscc ssce sscs ssec ssee sses ssla sslc ssle ssra ssrc ssrl ssrs sssa sssb sssc ssss suar suas sub- suba subb subl subs suc- succ sucr sucs suee suel suer sues sueu sul- sula sulc sule sull sulu sur- sura surc sure surr surs suru sus- susa suse suss susu suus uabc uaca uaes uarc uars uaru uasa uaua ubac ubal ubar ubba ubbe uber ubla uble ubls ubra ucal ucar ucas ucbc ucca ucea ucel uces ucla ucrc ucsa ucsb ucsc ucsu ucua ueba uele uell uers uess ulaa ulae ular ulas ulbc ulcc ulea uleb ulee ules ulla ulle ullr ulsa ulua ulul ulus urac ural uras urau urba urbe urbs urca ure- urea ures urla urle urls urra urre ursa urse urss ursu urur urus us-a usaa usac usal usar usas usba usbc usbe usbl usbr usbs usca uscc usce uscs usea usee usel user uses usle uslu usra ussa ussb ussc usse ussr usss ussu usua usul usus uulu uuuu