-ana aaaa aaaf aaan aaar aaas aafa aaff aana aaon aaoo aara aaro aars aasa aasf aass afaa afan afao afar affa affo affs afoa afoo afor afr- afra afro afrs afsa ana- anaa anan anao anar anas anfa anfo anna anno anns ano- anoa anon anor anos ansa ansf anso aono aora aorn aors aoss araf aran arar aras arfa arff arfs arna arno arns aroa aron aroo aror aros arr- arra arro arrr arrs ars- arsa arso asaa asaf asan asao asar asas asfa asno asof ason asor asos asra asro asrs assa assn asso assr asss faaa faan faas fafa faff fafo fana fano fans faon fara faro farr fars fasa fasn faso fass ffar ffff ffrr ffsa ffss fnar fnrs foaf foan foar fofo fono fons foof foon foos for- fora forn foro forr fors fosa foso foss fran fras frns fron fros frso fsas fsfo fsra fssa fssf naaa naan naar naas nafa naff nafo nafs nan- nana nann nano nans naor naos nara narf narn naro narr nars nas- nasa nasf naso nasr nass nfaa nfas nfff nfon nfra nfrs nfsr nnnn nnos nnsa nnss noaa non- nona nonn nono nons noo- noon nooo noor noos nor- nora norf norn noro norr nors nos- nosa noss nras nrna nron nrsa nsaa nsar nsfs nsna nsnr nsof nsos nsra nssa nssf nsso nssr nsss oafo oafs oara oars oass ofan ofas off- offa offo offr offs ofna ofno ofor ofra onan onar onas onna onno onon onor onos onra onso ooaa ooff oofs oona oons oooo ooos oora oosa oran orao orar oras orff orfs orna orno orns oro- orof oron oror oros orra orro orrs orsa orso osaf osan osar osas osfa osno osnr osoo osor osos osro ossa osso raaf raan raas rafa raff rana rann rano rans raos rara rarf raro rars rasa raso rass rnaf rnas roaf roan roar roas roff rofo rona rono rons roof roon roor roos rora roro rosa roso ross rras rrna rrrr rsaa rsaf rsna rsnn rsno rsnr rsos rssa s-os saaf saan saar saas safa saff safo safr sana sann sano sanr sans saon saor saos sara sarf sarn saro sarr sars sasa sasf saso sass sfar sfas sfor sfos sfra sfro sfss snar snas snns snoa snoo snor snos snra snrs soan soar soas sofa sofo son- sona sono sons soof soon soor soos sora sorn soro sorr sors sosa soso soss sraf sras srna srnn srno sros ssaa ssan ssao ssas ssns ssra ssrs sssa sssf ssss