ralb rall rara rarb rari rars rasa rasc rasi rasl rass rasu raua raub rauc raul raus rbbb rbbr rbbs rbcl rbis rbsl rbss rcac rcas rcbc rccb rccc rccs rcic rcis rcls rcsa rcsc rcsi rcsl rcss riaa riab riai rial rias riau rib- riba ribs ribu rica ricc rics riia riis rila rill rilu riri rirs risa risc risi riss risu rius rlab rlcs rlls rlua rras rrrr rsaa rsai rsbi rscc rscs rsis rslc rssa rssl rsua ruas ruba rubb rubi rubs rubu ruca ruci ruis rula rull rura rurc ruri rurs ruru rusa rusi russ rusu s-ib s-ic s-ii sa-c saab saac saal saar saas saba sabb sabc sabi sabr sabs sabu saca sacc saci sacr sacs sacu saia saic sail sair sais sala salc sali sall sals salu sara sarc sari sarl sarr sars saru sasa sasc sasi sasl sass saua sauc saul saur saus sbaa sbac sbai sbar sbas sbbs sbca sbcc sbcs sbia sbic sbsa sbsi sbus scaa scab scac scai scal scar scas scba scbi sccc sccl sccs sci- scia scic scil scir scis scl- sclc scls scr- scra scrc scri scrs scsa scsc scsi scsl scsr scsu scua scub scul scur siaa siab siac siai sial sias siau siba sibc sibi sibs sibu sica sicc sici sics sicu sil- sila silc sili sill sils silu sira sirc siri sirr sirs siru sisa sisc sisi siss sisu siui sius sl-i slaa slab slac slai slas slau slcc slcu slib slic slir slrc slrs slsa slsc slsu slub sluc slur sras srbc srcc srib sris srub ssaa ssab ssac ssas ssau ssbr ssca sscc ssci sscs ssis ssla sslc ssra ssrc ssri ssrl ssrs sssa sssb sssc sssi ssss suar suas sub- suba subb subi subl subs suc- succ suci sucr sucs suir suis sul- sula sulc suli sull sulu sur- sura surc suri surr surs suru sus- susa susi suss susu suus uabc uaca uair uarc uars uaru uasa uaua ubac ubal ubar ubba ubbi ubic ubii ubir ubis ubla ubli ubls ubra ucai ucal ucar ucas ucbc ucca ucci ucil ucla ucrc ucsa ucsb ucsc ucsu ucua uica uira uirr ulaa ulai ular ulas ulbc ulcc ulic ulla ulli ullr ulsa ulua ulul ulus urac urai ural uras urau urba urbi urbs urca urci uria urib uric uris uriu urla urls urra urri ursa ursi urss ursu urur urus us-a usaa usac usal usar usas usba usbc usbl usbr usbs usca uscc uscs usia usis uslu usra ussa ussb ussc ussr usss ussu usua usui usul usus uulu uuri uusi uuuu