a-ii aaaa aaab aaai aaas aaba aabb aabi aaib aaii aais aasa aasi aass abaa abab abai abas abax abb- abba abbb abbi abbs abia abib abis abs- absa absi abss aiai aias aiba aiia aiib aisa aisb aisi aixa aixi asaa asab asai asas asba asia asii asis asix assa assi asss axi- axia axis ba-i ba-x baaa baas baba babb babi babs baia baib bais baix basa basi bass baxi bbas bbbb bbbs bias biba bibb bibi bibs biis bis- bisa biss bixa bixi bsaa bsas bsix iaaa iaai iaas iaba iaia iais iasa iasi ibas ibia ibis ibsa ibss iias iiii iiis iisi is-a isai isas isba isbx isia isis issa issi isss ixia ixxi s-ib s-ii sa-x saab saas saba sabb sabi sabs saia sais saix sasa sasi sass saxa saxi sbaa sbai sbas sbbs sbia sbsa sbsi siaa siab siai sias siba sibi sibs sisa sisi siss sixa sixx ssaa ssab ssas ssis sssa sssb sssi ssss xbai xiii xisi xixi xxii xxix xxxi xxxx