a-ii aaaa aaab aaai aaap aaas aaba aabb aabi aabp aaib aaii aais aapa aapi aaps aasa aasi aass abaa abab abai abap abas abb- abba abbb abbi abbs abia abib abis abpa abpi abpp abps abs- absa absi absp abss aiai aias aiba aiia aiib aipa aipi aips aisa aisb aisi apai apap apas apba apbs api- apia apip apis appa apps apsa apsi apss asaa asab asai asap asas asba asia asii asip asis aspa aspi asps assa assi assp asss ba-i baaa baas baba babb babi babs baia baib bais bapa bapi bapp baps basa basi bass bbas bbbb bbbs biap bias biba bibb bibi bibs biis bipa bipp bips bis- bisa bisp biss bpai bpsa bsaa bsap bsas bspp iaaa iaai iaap iaas iaba iaia iais iapa iapp iaps iasa iasi iasp ibas ibia ibis ibsa ibss iias iiii iiis iipa iisi iisp ipas ipba ippa ipsa ipsi ipsp ipss is-a isai isas isba isia isis ispa isps issa issi issp isss paap paas paba paia paib paip pais papa papb papi papp paps pasa pasi pasp pass pbpa pbsa pbsp piai pias pibb pibi piia piip pipa pipi pipp pips pisa pisi piss ppap ppib pppa pppp ppps ppss psap psas psia psip psis pspi pspp psps pssa s-ib s-ii saab saap saas saba sabb sabi sabs saia saip sais sapa sapi sapp saps sasa sasi sass sbaa sbai sbas sbbs sbia sbsa sbsi sbsp siaa siab siai sias siba sibi sibs sipa sipi sipp sips sisa sisi siss sp-a spap spas spia spib spip spis spps spsa spsp spss ssaa ssab ssap ssas ssis sspa ssps sssa sssb sssi ssss