a-ii aaaa aaaf aaai aaar aaas aafa aaff aafi aaii aais aara aari aars aasa aasf aasi aass afaa afar affa affi affs afia afif afir afis afr- afra afri afrs afsa aiai aias aiff aifs aiia aiir aira airi airs aisa aisi aisr araf arai arar aras arfa arff arfs aria arif arii aris arr- arra arri arrr arrs ars- arsa arsi asaa asaf asai asar asas asfa asfi asia asif asii asir asis asra asrs assa assi assr asss faaa faas fafa faff fafi fair fais fara farr fars fasa fasi fass ffar ffff ffii ffrr ffsa ffss fiaa fiaf fiar fias fifa fiff fifi fiii fira firs fisa fisi fiss fras fria fris fsai fsas fsfi fsia fsra fssa fssf iaaa iaai iaas iaff iaia iais iara iars iasa iasi iasr ifaa ifar ifas ifis ifra ifrf ifri ifsa iias iifa iiii iiis iira iirs iisi iisr iraf irai irar iras iri- iria iris irra irri irrs irsa irsf is-a isaf isai isar isas isfa isia isis isra isri issa issf issi issr isss raaf raas rafa raff rafi raia raif raii rair rais rara rarf rari rars rasa rasi rass riaa riai rias rifa riff rifs riia riif riis riri rirs risa risi riss rras rrif rrrr rsaa rsaf rsai rsis rssa s-ii saaf saar saas safa saff safi safr saia saif sair sais sara sarf sari sarr sars sasa sasf sasi sass sfar sfas sfia sfra sfss siaa siaf siai sias sifa siff sifr sira sirf siri sirr sirs sisa sisi siss sraf sras srfi sris ssaa ssas ssis ssra ssri ssrs sssa sssf sssi ssss