rcac rcbc rccb rccc rcga rcgc rchb rcrg rcyc rgba rhag rhau rhbg rhcg rhug rrah rrrr ruag ruah ruba rubb rubu ruby ruca ruch ruck ruga rugg rugh ruhh ruhr ruka rukh rukk ruku rura rurc ruru ruya ryba rych ryck ryhb ryuk uabc uaca uarc uaru uaua ubac ubar ubay ubba ubra ucak ucar ucbc ucca ucha ucka ucky ucrc ucua ugab ugar ugcc ugcg ugra ugur uguu uhry uhuh ukba ukcc ukha ukky ukra ukrc ukur urac urau uray urba urca urch urcy urga urgh urgu urka urra urrh urry uruk urur uuuu uyar yaak yaar yaba yacc yack yacy yaga yahk yahu yaka yakh yaku yara yarb yark yarr yaru yary yaya yayu ybry ycab yccc ycch yhar yuba yubu yuca yuck yuga yugg yugh yugu yuka yuku yuky yura yury yuya yuyu yyyy