a-ii aaaa aaai aaas aaii aais aasa aasi aass agag agai agas agga aggi agia agig agii agis agsa agsg aiai aias aiga aiia aisa aisg aisi asaa asag asai asas asia asii asis assa assi asss gaas gaga gagg gagi gags gaia gaig gais gasa gasi gass gggg ggss giaa giai gias giga gigg gigi gigs giis gisa giss gsis iaaa iaai iaas iags iaia iais iasa iasi igas igga iggs igia igis iias iiii iiis iisi is-a isai isas isia isis issa issi isss s-ii saag saas saga sagg sagi sags saia sais sasa sasi sass sgaa sggg sggs sgss siaa siag siai sias siga sigg sigi sigs sisa sisi siss ssaa ssas ssgs ssis sssa sssi ssss