aaaa aaad aaar aaas aada aads aadu aara aard aars aaru aasa aasd aass aasu aaus adaa adad adar adas adda addd addr adds addu adra adrs adsa adsr adss adua adur arad arar aras arau arda ards ardu arr- arra arrr arrs arru ars- arsa arsd arsu arua arud asaa asad asar asas asau asda asds asra asrs asru assa assd assr asss assu asud asur asus auaa aur- aura aurd ausa ausd ausu daad daar daas daau dada dads dadu dara dard darr dars daru dasa dasd dass daud daur daus dddd ddss draa drad drar dras drau drda drra drrs drsa drua drus druu dsda dsdr dsrr dssa duaa duad duar duas duda dudd duds dudu dura duru dusa duur raad raas rada radd radr rads radu rara rars rasa rasd rass rasu raua raud raus rdas rrad rras rrrr rsaa rsdd rsds rssa rsua ruad ruas ruda rudd ruds rura rurd rurs ruru rusa russ rusu ruud saad saar saas sada sadd sadr sads sadu sara sard sarr sars saru sasa sasd sass saua saud saur saus sdau sdds sdrs sdss sdsu sras srsd ssaa ssas ssau ssdd ssra ssrs sssa ssss suar suas suda sudd suds sur- sura surd surr surs suru sus- susa susd suss susu suus uars uaru uasa uasd uaua udaa udad udar udas udau udds udra udsd urad uras urau urda urds urdu urra ursa urss ursu urur urus us-a usaa usad usar usas usda usds usra ussa ussr usss ussu usua usus uuuu