rydy ryis ryob rysy s-ib s-ic s-ii s-os sbbs sbcc sbcs sbds sbic sbor sbsd sbsi sbus scbi sccc sccs sccy scdc scds sci- scic scid scio scir scis scob scoo scor scr- scrc scri scrs scry scsc scsd scsi scso scsr scsu scub scud scur sdcc sdco sddc sdds sdib sdic sdio sdrc sdrs sdry sdsc sdss sdsu sibc sibi sibo sibs sibu siby sicc sici sico sics sicu sidd sidi sido sidr sids sidy siod sior sios siou sirc siri siro sirr sirs siru sisc sisd sisi siss sisu sisy siui sius siyi siyu sobo sobr sobs sobu soci soco socr socs socy sodd sodo sods sodu sody soic soir sois sood soor soos sooy sorb sord sori soro sorr sors soru sory sosi soso soss soud sour sous soyo soys srbc srby srcc srib sris sros srsd srub ssbr ssby sscc ssci sscs ssdc ssdd ssid ssis ssoc ssrc ssri ssrs sssb sssc sssi ssss sub- subb subd subi subo subs suc- succ suci sucr sucs sudd sudi sudo suds suid suio suir suis suor suos sur- surc surd suri suro surr surs suru sury sus- susd susi suso suss susu susy suus suyi suyo suyr suyu sybo syco sycr sydi syds syis syro syrs syry syso syss ubbi ubbo ubic ubid ubii ubir ubis uboc ubod ubos ubud ucbc ucci ucdc ucdd ucio ucos ucrc ucsb ucsc ucsd ucsu udbc uddi udds udic udid udir udoo udos udsd uirr uisd uocc uor- urbi urbs urci urcy urds urdu urdy urib uric uris uriu uro- uroo urri urry ursi urso urss ursu ursy urur urus usbc usbr usbs uscc usco uscs usdc usdo usds usis usoc usoi usos ussb ussc ussr usss ussu ussy usui usus uuoc uuri uusi uuuu uydo uyir ybbs ybor ybry yccc ycsb yidi yids yidu yirb yird yirr yiss yiud yobi yobo yobs yodo yods yood yord yori yoro yory yosi yoso youb youd youi your yous yoyo ysby ysco ysii yssu ysyb yubu yudo yudu yurd yuri yury yuyu yyyy