-ana aaaa aaab aaan aaas aaba aabb aana aaon aaoo aasa aass abaa abab aban abas abb- abba abbb abbo abbs aboa abob abon aboo abos abs- absa abss abza ana- anaa anab anan anao anas anaz anba anbb anbo anna annb anno anns ano- anoa anon anos ansa anso anza aoba aonb aono aoss asaa asab asan asao asas asba asbo asno asob ason asos assa assn asso asss aza- azab azan azas azaz azna azo- azon azoo azos azza azzo baaa baan baas baaz baba babb babo babs bana bann bano bans banz baon baos basa baso bass baza bazo bbas bbbb bbbs bnas bnss boab boan boas boaz boba bobb bobo bobs bona bonn bono bons boob boon boos booz bosa bosn boso boss boza bozo bsaa bsas bsns bson bsos bzzz naaa naab naan naas naba nabo nabs nan- nana nanb nann nano nans naos nas- nasa nasb naso nass naza nazo nazz nbaa nbas nbbo nnnn nnos nnsa nnss noaa noba nobo nobs non- nona nonn nono nons noo- noob noon nooo noos nos- nosa noss nsaa nsbo nsna nsos nssa nssb nsso nsss oass oban obas obba obbo obon obos obsn obss onab onan onas onna onno onon onos onoz onso onza onzo ooaa ooba oona oons oooo ooos oosa osan osas osba osno osoo osos ossa ossb osso ozan ozna ozon s-os saab saan saas saaz saba sabb sabo sabs sabz sana sann sano sans sanz saon saos sasa saso sass saza sbaa sbas sbbs sbsa snab snas snba snns snoa snob snoo snos soan soas soaz soba sobo sobs son- sona sono sons soon soos sosa soso soss soz- soza ssaa ssab ssan ssao ssas ssbn ssns sssa sssb ssss szob szss zaan zaba zabo zana zann zano zans zaza zoan zobo zon- zona zons zoo- zoon zoos zoso zoss zoza zozo zsss zzzs zzzz