cccc cccs cccu ccee ccrc ccre ccrs ccss ccuc ccus cec- cece cecs ceec cees cer- cerc cere cers cery cesc cese cesr cess ceys ceyu crcc crce crcr cre- crec cree cres creu crss crue crus cry- crys cscc csce cscr cscs csec csee cser csrc csrs csse cssr csur csus csys cucc cuce cuer cues cure curr curs cury cuss cusu cusy cuy- cuyr cyc- cycc cycs cyre cyrs cyse cyy- cyyc eccc ecce eces ecrc ecrr ecru ecsc ecse ecss ecsu ecus eecs eeee eees eerc eers eery eese eesy ercc erce erec erer eres errc erre errs erse eruc erur erus eryc erye esce escr escs escu esee eser eses esse essu essy esus euer eur- eurc eure eury euse eyec eyer eyes eyey eyre eyry eyse eyyr rccc rccs rcsc rcss rcyc recc rece recr recs recu recy rees rere rers reru rery rese ress reue reus reuu reye reys rrrr rscc rscs rscy rsee rsre ruce ruer rues rurc rure rurs ruru ruse russ rusu rusy ruys ryes rysy ryue sccc scce sccs sccy scec scee scer scey scr- scrc scre scrs scry scsc scsr scsu scur scye se-c se-e se-s se-u se-y sec- secc sece secr secs secu secy seec seer sees seeu seey serc sere serr sers seru sery sesc sese sess seur seye seys srcc srec sres sscc ssce sscs ssec ssee sses ssrc ssrs sssc ssss suc- succ sucr sucs suee suer sues sueu suey sur- surc sure surr surs suru sury sus- suse suss susu susy suus suyr suyu syce sycr syer syes syre syrs syry syse syss syue uces ucrc ucsc ucsu uers uess ueys urcy ure- ures urey urre urry urse urss ursu ursy urur urus uscc usce uscs usee user uses ussc usse ussr usss ussu ussy usus uuuu uyre yccc ycee ye-u yeer yees yere yerr yers yery yess yesu yeue yeye yeyr ysee yser yses ysse yssu ysue yuce yuer yure yury yuye yuyu yyyy