cccc cccl cccu ccee ccel cclc ccoc ccrc ccre ccrl ccuc cec- cece ceco ceec ceel cel- celc cele cell celo ceol ceor ceou cer- cerc cere cerl cero clec clee cleo cler cleu cloe cloo clor clou clro clue coce coco cocu coel col- cole coll colo colu cool cor- corc core corl coro corr coue coul cour crcc crce crcr cre- crec cree creo creu croc croe crol croo cror crue cucc cuce cuer culc cule cull culo cure curl curo curr e-cl eccc ecce eccl ecco eco- ecol ecou ecrc ecrl ecrr ecru eeee eele eeoc eerc eero elce elco elec elee eleo eler elle ello ellu elro elue elul eole eolo eore eorl ercc erce erec erel erer erle erll eroc eroe erol eroo errc erre erro eruc erur euer eule eur- eurc eure euro lccc lcce lcer lcor lcrl le-u lece leco leel leer lele lell lelo lelu leoc leor leou lerc lere lero leuc leur llcc lleu lllc llll lloc lloo locc loce loco locu loeu lole loll lolo looc looe lool loor lore loro loue loul lour louu lroc lrrc lrrr luce luer lule lull lulu lure o-eo occc oce ocee oclc ocre ocrl ocro ocrr ocul ocur oec- oecc oeec oele oere olcc ole- oleo oler olle ollo olor olur oocr ooer oolo oooo oore orce orco ore- orec orel oreo orer orle orlo orlu oro- oroe oror orro oucc ouer oule oulu our- oure ouro ouu- rccc rcle recc rece recr recu reel rele rell relo reol reou rere rero reru reue reul reuu rlee rleu rocc roce roco roel roer role roll rolo rool roor rorc rore roro roru roue roul rrle rrrr ruce ruel ruer rule rull rulo rurc rure ruro ruru ucel ucrc uele uell ulcc ulco ulee uleo ulle ullo ullr ulo- uloc ulul uocc uolc uor- uore ure- urle uro- urol uroo urre urur uulu uuoc uuuu