rbss rcbc rccb rccc rccs rcdc rcds rcic rcid rcis rcls rcms rcrd rcsc rcsd rcsi rcsl rcss rdbm rdcm rdms rib- ribs ribu ricc rics ridc ridd ridi rids riis rill rilu rimi rimm rims rimu riri rirs risc risd risi rism riss risu rius rlcs rlds rlls rlml rlms rmbs rmll rmsc rrmc rrrr rrum rsbi rscc rscs rsdd rsdl rsds rsid rsis rslc rsml rssl rsum rubb rubi rubs rubu ruci rudd rudi rudl ruds ruid ruis rull rumb rumi ruml rumm rums rurc rurd ruri rurs ruru rusi russ rusu ruud s-ib s-ic s-ii sbbs sbcc sbcs sbds sbic sbmc sbml sbsd sbsi sbus scbi sccc sccl sccm sccs scdc scds sci- scic scid scil scim scir scis scl- sclc sclm scls scmc scmm scms scr- scrc scri scrs scsc scsd scsi scsl scsr scsu scub scud scul scum scur sdcc sddc sdds sdib sdic sdlc sdls sdms sdrc sdrs sdsc sdsl sdsm sdss sdsu sibc sibi sibs sibu sicc sici sicm sics sicu sidd sidi sidr sids siim sil- silc sild sili sill sils silu simd simi simm sims sirc siri sirr sirs siru sisc sisd sisi siss sisu siui sium sius sl-i slcc slcd slcu slds slib slic slid slim slir sllm slmm slrc slrs slsc slsu slub sluc slud slum slur smbc smcc smdc smdr smic smid smil smis smlc smls smsc smsd smss smur smus srbc srcc srib srim sris srmc srsd srub ssbr sscc ssci sscs ssdc ssdd ssdm ssid ssis sslc ssmc ssml ssrc ssri ssrl ssrm ssrs sssb sssc sssi sssm ssss sub- subb subd subi subl subm subs suc- succ suci sucr sucs sudd sudi suds suid suir suis sul- sulc suld suli sull sulm sulu sum- sumd sumi sums sumu sur- surc surd suri surr surs suru sus- susd susi suss susu suum suus ubbi ubic ubid ubii ubir ubis ubli ubls ubud ucbc ucci ucdc ucdd ucil ucmc ucrc ucsb ucsc ucsd ucsm ucsu udbc uddi udds udic udid udim udir udmc udsd udsl uiml uims uirr uisd ulbc ulcc ulic ulim ulli ullr ulmi ulmu ulul ulum ulus umb- umbi umms umri umsu umus urbi urbs urci urds urdu urib uric urim uris uriu urls urmi urri ursi urss ursu urum urur urus usbc usbl usbr usbs uscc uscm uscs usdc usdl usdm usds usim usis uslu usmc usmd usmm usms ussb ussc ussr usss ussu usui usul usus uulu uuri uusi uuuu