rinn riri rirs risa risc risi riss risu rius rnag rnai rnas rncs rngs rnin rras rrna rrrr rrun rsaa rsai rscc rscn rscs rsgc rsis rsna rsnn rsnr rssa rsua ruag ruan ruas ruca ruci ruga rugg rugi rugs ruin ruis runa runc rung runi runn runs rura rurc ruri rurs ruru rusa rusi russ rusu ruun s-ic s-ii sa-c saac saag saan saar saas saca sacc saci sacn sacr sacs sacu saga sagg sagi sags sagu saia saic sain sair sais sana sang sani sann sanr sans sanu sara sarc sarg sari sarn sarr sars saru sasa sasc sasi sass saua sauc saun saur saus scaa scac scag scai scan scar scas sccc sccs scgs sci- scia scic scin scir scis scna scnr scr- scra scrc scri scrn scrs scsa scsc scsi scsn scsr scsu scua scug scun scur sgaa sgac sgau sgca sgcg sggg sggs sgic sgss siaa siac siag siai sian sias siau sica sicc sici sics sicu siga sigg sigi sign sigs sina sing sini sinn sins sinu sira sirc siri sirr sirs siru sisa sisc sisi siss sisu siui sius snag snar snas snca sncc snia snig snir snns snra snrs snug snur snus sras srcc sris srna srni srnn ssaa ssac ssan ssas ssau ssca sscc ssci sscs ssgs ssin ssis ssns ssra ssrc ssrg ssri ssrs sssa sssc sssi ssss suan suar suas suc- succ suci sucr sucs sug- suga sugg sugi suig suin suir suis sun- suna sung suni sunn suns sunu sur- sura surc surg suri surn surr surs suru sus- susa susi suss susu suus uaca uair uang uarc uars uaru uasa uaua ucai ucan ucar ucas ucca ucci ucin ucrc ucsa ucsc ucsu ucua ugar ugcc ugcg uggs ugia ugis ugni ugra ugri ugur uguu uica uira uirr unaa unac unai unan unar unas unau unca uncc uncg unci uncs unga ungu uni- unia unic unii unin unir unis unna unni unns unra unrs uns- unsa unsc unsg unus urac urai uran uras urau urca urci urga urgi urgu uria uric urin uris uriu urna urni urns urra urri ursa ursi urss ursu urun urur urus us-a usaa usac usag usan usar usas usca uscc uscg uscs usga usia usin usis usna usnc usnr usnu usra ussa ussc ussr usss ussu usua usui usun usus uuni uuri uusi uuuu