-ana aaaa aaan aaar aaas aana aaon aaoo aara aaro aars aasa aass ana- anaa anan anao anar anas anna anno anns ano- anoa anon anor anos ansa anso aono aora aorn aors aoss aran arar aras arna arno arns aroa aron aroo aror aros arr- arra arro arrr arrs ars- arsa arso asaa asan asao asar asas asno ason asor asos asra asro asrs assa assn asso assr asss naaa naan naar naas nan- nana nann nano nans naor naos nara narn naro narr nars nas- nasa naso nasr nass nnnn nnos nnsa nnss noaa non- nona nonn nono nons noo- noon nooo noor noos nor- nora norn noro norr nors nos- nosa noss nras nrna nron nrsa nsaa nsar nsna nsnr nsos nsra nssa nsso nssr nsss oara oars oass onan onar onas onna onno onon onor onos onra onso ooaa oona oons oooo ooos oora oosa oran orao orar oras orna orno orns oro- oron oror oros orra orro orrs orsa orso osan osar osas osno osnr osoo osor osos osro ossa osso raan raas rana rann rano rans raos rara raro rars rasa raso rass rnas roan roar roas rona rono rons roon roor roos rora roro rosa roso ross rras rrna rrrr rsaa rsna rsnn rsno rsnr rsos rssa s-os saan saar saas sana sann sano sanr sans saon saor saos sara sarn saro sarr sars sasa saso sass snar snas snns snoa snoo snor snos snra snrs soan soar soas son- sona sono sons soon soor soos sora sorn soro sorr sors sosa soso soss sras srna srnn srno sros ssaa ssan ssao ssas ssns ssra ssrs sssa ssss