ound oung our- ourn ouro ouu- rccc rcdc rcgc rcic rcid rcnr rcon rcrd rcrg rdcm rdio rdoc ricc rico ridc ridd ridi rido rigg rigi rigo rigu riin rimi rimm rimo rimu rind ring rinn rino riom rion riou riri rmon rmrg rnco rndc rndm rnin rnod rocc roco rodd rodi rodo rogg rogi rogo roid roig roin roio roir roiu romd romi romm romo ronc rond rong roni rono rood roog rooi room roon roor rorc rori roro roru roud roum roun rrmc rrrr rrum rrun ruci rudd rudi rudo rugg rugi ruid ruin rumi rumm rumo runc rund rung runi runn runo rurc rurd ruri ruro ruru ruud ruun ucci ucdc ucdd ucin ucio ucmc ucom ucon ucrc uddi udic udid udig udim udin udir udmc udon udoo udun ugcc ugcg uggo ugni ugod ugri ugro ugur uguu uirr umgo ummg ummo umno umor umri uncc uncg unci unco undi undo ungo ungu uni- unic unii unin unio unir unmc unmr unni unno unon unro unum uocc uomo uor- urci urdu urgi urgu uric urim urin uriu urmi urni uro- urom uroo urri urum urun urur uuni uuno uuoc uuri uuuu