aaaa aaar aaas aaav aara aars aart aasa aass aast aata aatt aava arar aras arat arr- arra arrr arrs arrt ars- arsa arst arta artr arts artv arva asaa asar asas asat asra asrs assa assr asss asst asta astr asts astv asva asvs at-t ataa atar atas atat atra atst atta attr atts atvs avar avas avat avra avst avva raas raat rara rars rasa rass rast rata rats ratt rava rras rrat rrrr rsaa rssa rsts rtas rtss rtts rtva s-vt saar saas saat sara sarr sars sart sarv sasa sass sast sata satr sats satt sava savs sras srta srtr srtv ssaa ssas ssat ssra ssrs sssa ssss ssta ssts st-v star stas stat stra strs stss sttr stvs svar svtr taa- taar taas taat tara tarr tars tart tasa tasr tass tast tata tatr tats tatt tatv tava tavs traa tras trat trav trra trst trtr trvs tsaa tsar tsat tsav tssa tssr tsst tsts ttss tttt tvrr tvsa tvss tvtv vaar vaas vaat vara varr vars vart vas- vasa vass vast vata vats vatt vava vavs vras vrav vrsa vsta vtrs vvvv