a-ii aaaa aaab aaai aaas aaba aabb aabi aaib aaii aais aasa aasi aass abaa abab abag abai abas abb- abba abbb abbi abbs abia abib abig abis abs- absa absi abss agag agai agas agba agga aggi agia agib agig agii agis agsa agsg aiai aias aiba aiga aiia aiib aisa aisb aisg aisi asaa asab asag asai asas asba asia asii asis assa assi asss ba-i baaa baas baba babb babi babs baga bagg bagi bags baia baib baig bais basa basi bass bbas bbbb bbbs bbga bggs bgia bias biba bibb bibi bibs biga bigb bigg bigs biis bis- bisa biss bsaa bsas bsgs gaas gaba gabb gabi gabs gaga gagg gagi gags gaia gaig gais gasa gasb gasi gass gbag gbas gbbs gggg ggss giaa giai gias giba gibb gibs giga gigg gigi gigs giis gisa giss gsab gsis iaaa iaai iaas iaba iags iaia iais iasa iasi ibas ibga ibia ibis ibsa ibss igas igba igga iggs igia igis iias iiii iiis iisi is-a isai isas isba isia isis issa issi isss s-ib s-ii saab saag saas saba sabb sabi sabs saga sagg sagi sags saia sais sasa sasi sass sbaa sbai sbas sbbs sbia sbig sbsa sbsi sgaa sggg sggs sgss siaa siab siag siai sias siba sibi sibs siga sigg sigi sigs sisa sisi siss ssaa ssab ssas ssgs ssis sssa sssb sssi ssss