raub rauc raud rauk raus rbbb rbbr rbbs rbds rbsd rbss rcac rcas rcbc rccb rccc rccs rcdc rcds rcrd rcsa rcsc rcsd rcss rdac rdas rkss rrad rras rrrr rsaa rscc rscs rsdd rsds rssa rsua ruad ruas ruba rubb rubs rubu ruca ruck ruda rudd ruds ruka rukk ruku rura rurc rurd rurs ruru rusa rusk russ rusu ruud sa-c saab saac saad saak saar saas saba sabb sabc sabr sabs sabu saca sacc sacd sack sacr sacs sacu sada sadb sadc sadd sadr sads sadu saka sakb sakk saks saku sara sarc sard sark sarr sars saru sasa sasc sasd sask sass saua sauc saud sauk saur saus sbaa sbac sbar sbas sbbs sbca sbcc sbcs sbds sbrk sbsa sbsd sbus scaa scab scac scad scak scar scas scba sccc sccs scda scdc scds sck- scr- scra scrc scrs scsa scsc scsd scsr scsu scua scub scud scur sdak sdau sdba sdcc sddc sdds sdrc sdrs sdsc sdss sdsu skab skac skad skar skra sksd skss skua skud skur sras srbc srcc srsd srub ssaa ssab ssac ssas ssau ssbr ssca sscc sscs ssdc ssdd ssra ssrc ssrs sssa sssb sssc ssss suar suas sub- suba subb subd subs suc- succ suck sucr sucs suda sudd suds suka suks suku sur- sura surc surd surr surs suru sus- susa susd susk suss susu suus uabc uaca uarc uars uaru uasa uasd uaua ubac ubar ubba ubra ubud ucad ucak ucar ucas ucbc ucca ucdc ucdd ucka ucrc ucsa ucsb ucsc ucsd ucsu ucua udaa udad udar udas udau udbc udca udds udra udsd uduk ukba ukcc ukra ukrc uksa uksc ukur urac urad uras urau urba urbs urca urda urds urdu urka urra ursa urss ursu uruk urur urus us-a us-k usaa usac usad usak usar usas usba usbc usbr usbs usca uscc uscs usda usdc usds uska usra ussa ussb ussc ussr usss ussu usua usus uuuu