a-wa aaaa aaar aaas aaoo aaow aara aaro aars aasa aass aaww aora aors aoss arar aras araw aroa aroo aror aros arow arr- arra arro arrr arrs ars- arsa arso arwa asaa asao asar asas asor asos asow asra asro asrs assa asso assr asss awar awas awoo awow awro awss awwa awws oara oars oass ooaa oooo ooos oora oosa orao orar oras oro- oror oros orra orro orrs orsa orso orwa orwo osar osas osoo osor osos osow osro ossa osso owar owow owsa owwa raas raos rara raro rars rasa raso rass rawa rawr raws raww roar roas roor roos rora roro rosa roso ross rowa rowr rows roww rras rrrr rsaa rsos rssa s-os saar saas saor saos sara saro sarr sars sasa saso sass sawa saws soar soas soaw soor soos sora soro sorr sors sosa soso soss sowa sowr sows sras sraw sros ssaa ssao ssas ssaw ssra ssrs sssa ssss ssws swar swas swoo swor swow swss waaa waao waar waas waaw waoo waor waos waow war- wara waro warr wars warw wasa waso wasr wass wawa wawo waws woaa woar woas woos woow wora woro worr wors worw wosa woso woss wosw wowo wows woww wraa wrao wrar wras wraw wroa wroo wros wrow wrra wrro wrrs wrrw wrsa wrso wrsr wrss wrsw wrwa wrwr wsaa wsar wsoo wsor wsos wsra wsro wsrs wsrw wssr wsss wssw wswr wsws wsww wwor wwos wwow wwra wwrr wwrw wwsr wwss wwwa wwwr wwws wwww