a-ya aaaa aaab aaap aaas aaba aabb aabp aaby aapa aaps aasa aass abaa abab abap abas abay abb- abba abbb abbs abby abpa abpp abps abs- absa absp abss abys abyy apap apas apay apba apbs appa apps appy apsa apss asaa asab asap asas asay asba asby aspa asps aspy assa assp asss assy asya ayas ayay ayya baaa baas baba babb babs baby bapa bapp baps basa bass baya bays bbas bbay bbbb bbbs bpay bpsa bsaa bsap bsas bspp byas bysb bysp byss bysy paap paas paba papa papb papp paps papy pasa pasp pass pay- paya payb payp pays pbpa pbsa pbsp ppap pppa pppp ppps ppss psap psas pspp psps pssa psy- psys pyas pyay pypy pysa pyss saab saap saas saba sabb sabs sapa sapp saps sapy sasa sass saya sayp says sbaa sbas sbbs sbsa sbsp sp-a spap spas spay spby spps spsa spsp spss spy- spys ssaa ssab ssap ssas ssby sspa ssps sssa sssb ssss syss yaas yaba yapa yapp yaps yasa yass yaya yays ybas ybbs ysay ysby ysyb yyyy