raba rabb rabi rabs rabu rac- raca racc raci racs racu raia raic raii rain rair rais raiu rana ranc rani rann rans rara rarb rari rars rasa rasc rasi rass rasu raua raub rauc raun raus rbbb rbbr rbbs rbis rbss rcac rcas rcbc rccb rccc rccs rcic rcis rcnr rcsa rcsc rcsi rcss riaa riab riai rian rias riau rib- riba ribs ribu rica ricc rics riia riin riis rina rinn riri rirs risa risc risi riss risu rius rnai rnas rnbr rncs rnin rras rrna rrrr rrun rsaa rsai rsbi rscc rscn rscs rsis rsna rsnn rsnr rssa rsua ruan ruas ruba rubb rubi rubs rubu ruca ruci ruin ruis runa runc runi runn runs rura rurc ruri rurs ruru rusa rusi russ rusu ruun s-ib s-ic s-ii sa-c saab saac saan saar saas saba sabb sabc sabi sabr sabs sabu saca sacc saci sacn sacr sacs sacu saia saic sain sair sais sana sani sann sanr sans sanu sara sarc sari sarn sarr sars saru sasa sasc sasi sass saua sauc saun saur saus sbaa sbac sbai sbar sbas sbbs sbca sbcc sbcs sbia sbic sbsa sbsi sbus scaa scab scac scai scan scar scas scba scbi sccc sccs sci- scia scic scin scir scis scna scnr scr- scra scrc scri scrn scrs scsa scsc scsi scsn scsr scsu scua scub scun scur siaa siab siac siai sian sias siau siba sibc sibi sibs sibu sica sicc sici sics sicu sina sini sinn sins sinu sira sirc siri sirr sirs siru sisa sisc sisi siss sisu siui sius snab snar snas snba snca sncc snia snib snir snns snra snrs snub snur snus sras srbc srcc srib sris srna srni srnn srub ssaa ssab ssac ssan ssas ssau ssbn ssbr ssca sscc ssci sscs ssin ssis ssns ssra ssrc ssri ssrs sssa sssb sssc sssi ssss suan suar suas sub- suba subb subi subs suc- succ suci sucr sucs suin suir suis sun- suna sunb suni sunn suns sunu sur- sura surc suri surn surr surs suru sus- susa susi suss susu suus uabc uaca uair uarc uars uaru uasa uaua ubac ubar ubba ubbi ubic ubii ubir ubis ubra ucai ucan ucar ucas ucbc ucca ucci ucin ucrc ucsa ucsb ucsc ucsu ucua uica uira uirr unaa unac unai unan unar unas unau unca uncc unci uncs uni- unia unic unii unin unir unis unna unni unns unra unrs uns- unsa unsc unus urac urai uran uras urau urba urbi urbs urca urci uria urib uric urin uris uriu urna urni urns urra urri ursa ursi urss ursu urun urur urus us-a usaa usac usan usar usas usba usbc usbr usbs usca uscc uscs usia usin usis usna usnc usnr usnu usra ussa ussb ussc ussr usss ussu usua usui usun usus uuni uuri uusi uuuu