cccc cccl cccp cccu cclc ccpl ccpp ccpr ccrc ccrl ccrp ccuc ccup clpp cly- cpcu cplc crcc crcr crpc crup cry- cucc culc cull culp cupl cupp cupr curl curr cury cuy- cuyl cuyp cuyr cyc- cycc cycl cyl- cylc cyll cypc cyrl cyul cyy- cyyc lccc lcpc lcpl lcrl llcc lllc llll llyr lppl lprp lrpu lrrc lrrr lrry lucy lull lulu lupu lury luup lyc- lyly pccc pccl pcll pcpp pcrc pcrl plcc plpp plup plur ppcc pppp pprc ppru ppur prcc prcp prlr pruu pull pulp pulu puly pupl pupu pupy pur- purl purp purr puru pury puuc puy- pyl- pyll pypy pyr- pyrl pyry rccc rcyc rpyc rrrr rull ruly rupp rupy rurc rurp ruru ruyl u-rp uccp ucrc ulcc ullr ully ulul uppc uppp uppu uppy upup urcy urry urup urur uucp uulu uuuu yccc ypcc yrly yulu yury yuyu yyyy