cccc cccp cccu cchp cchr cchy ccpp ccpr ccrc ccrp ccuc ccup chch chcp chpp chpr chrc chrp chrr chur chuy chy- chyc cpcu crcc crcr crpc crup cry- cucc cupp cupr curr cury cuy- cuyp cuyr cyc- cycc cypc cyy- cyyc hccc hcch hcpc hcrp hhhh hhpc hpcc hrpc hrpp hrrc huch hucu huhu hupp hurr huru hury huyr hyp- hyph hypy pccc pchp pcpp pcrc phcc phrr ppcc pppp pprc ppru ppur prcc prcp pruu puch pupu pupy pur- purp purr puru pury puuc puy- pych pyhu pypy pyr- pyry rccc rcyc rhcp rpyc rrrr ruch ruhh ruhr rupp rupy rurc rurp ruru rych u-rp uccp ucph ucrc uhry uhuh uhup uppc uppp uppu uppy upup urch urcy urrh urry urup urur uucp uuuu yccc ycch ypcc yury yuyu yyyy