rbbr rbbs rbhs rbis rbms rboh rbpj rbsp rbss rhhs rhib rhim rhio rhob rhoh rhoj rhos rhsm rhum rhus rib- ribo ribs ribu riho rihs riis riji rijo rijp rijs rimi rimm rimo rims rimu riom rios riou ripi ripp ripr rips riri rirs rish risi rism riso risp riss risu rius rmbs rmhs rmjm rmrp rmsp rob- robb robi robo robs robu rohm rohr rohs rohu roio roir rois roiu roji rojo rojs romb romi romm romo romp roms roob rooi room roop roor roos ropo rops rori roro roru rosh rosi roso rosp ross roub rouh roum roup rous rpho rphs rpii rpms rpob rpos rpps rrhs rrmp rrrr rrsp rrum rsbi rshs rsis rsos rspb rspo rsps rsum rubb rubi rubp rubs rubu ruhh ruhi ruhm ruhr ruhs ruis rujm rumb rumi rumm rumo rump rums rupp ruri ruro rurp rurs ruru rush rusi ruso russ rusu s-ib s-ii s-os sbbs sbhs sbor sbsi sbsp sbus shbm shbs shhh shhs shib shih shii shim shio ship shir shis shiu shm- shmo shom shoo shop shor shos shou shps shri shrp shrs shub shui shum shup shur shus shuu sibi sibo sibs sibu sihi sihr sihs sihu siim sijo simh simi simm simo simp sims siop sior sios siou sipi sipo sipp sips siri siro sirp sirr sirs siru sish sisi siss sisu siui sium sius sjhs sjis sjsu sjur smbh smhs smis smjr smos smps smsh smsp smss smur smus sobo sobp sobr sobs sobu sohh sohm soho sohp sohs sohu soim soir sois soji soju somb somi somm somo soom soop soor soos soph sopi sopo sopp sops sopu sorb sorh sori sorm soro sorr sors soru sosh sosi soso soss soum soup sour sous sphr sphs spib spim spio spip spir spis spmi spms spoj spoo spop spor spos spps spri sprm spro sprs spso spsp spss spui spur spus srhs srib srim sris sros srps srsp srub ssbr sshs ssis ssop sspo ssps ssri ssrm ssrs sssb sssh sssi sssm ssss sub- subb subh subi subj subm subo subs suhb suhi suho suhr suio suir suis suji sum- sumi sumo sump sums sumu suoh suor suos sup- suph supo supp supr sups sur- suri suro surp surr surs suru sus- susi suso susp suss susu suum suus u-rp ubbi ubbo ubii ubir ubis ubos uhoh uhrs uhss uhuh uhup uims uipi uirr ujpo umb- umbi umbo umhs ummo umms umor umph umps umri umsp umsu umus uomo uor- upim upis upor upos uppp uppu upri upsi upup urbi urbs urho urib urim uris uriu urmi uro- urom uroo urpo urrh urri ursi urso urss ursu urum urup urur urus usbr usbs ushi usho ushr ushs ushu usim usip usis usmm usmp usms usoi usos uspo uspp usps ussb ussr usss ussu usui usus uuri uusi uuuu