a-ha aaaa aaab aaah aaas aaba aabb aabh aaha aahs aaoo aasa aass abaa abab abas abb- abba abbb abbo abbs abha abho abhs aboa abob aboh aboo abos abs- absa abss ahab ahah ahas ahha ahhs ahoa ahsa ahso ahss aoah aoba aoss asaa asab asah asao asas asba asbo asha ashs asob asos assa assh asso asss baaa baah baas baba babb babo babs baha baho bahs baoh baos basa bash baso bass bbas bbbb bbbs bbhs bhao bhhs boab boas boba bobb bobo bobs boha boho bohs boob booh boos bosa bosh boso boss bsaa bsas bshs bsos haab haas haba habo habs haha haho hahs hasa hash hass hbbs hbhs hbos hbss hhaa hhhh hhhs hoas hoba hobo hobs hoha hoho hoos hosa hosh hoss hsas hshs hsob oahs oass obas obba obbo obhs obos obss ohba ohho ohhs ohob ohoh ohos ohso ohss ooaa ooba ooha ooho oohs oooh oooo ooos oosa osas osba osha osho oshs osoo osos ossa ossb osso s-os saab saah saas saba sabb sabo sabs saha saho sahs saos sasa sash saso sass sbaa sbas sbbs sbhs sbsa shab shah shao shas shbs shha shhh shhs shoa shoo shos soas soba sobo sobs soha sohh soho sohs soos sosa sosh soso soss ssaa ssab ssao ssas sshs sssa sssb sssh ssss