-ana aaaa aaab aaam aaan aaas aaba aabb aabm aama aamb aamn aamo aams aana aaon aaoo aasa aasm aass abaa abab abam aban abas abb- abba abbb abbo abbs abma abmb abms aboa abob abon aboo abos abs- absa abss amaa amam aman amas amb- amba ambn ambo ambs amm- amma ammo amno amns amob amon amoo amos amsa amsn amso amss ana- anaa anab anam anan anao anas anba anbb anbo anma anna annb anno anns ano- anoa anom anon anos ansa anso aoba aoma aonb aono aoss asaa asab asam asan asao asas asba asbm asbo asma asmm asms asno asob asom ason asos assa assn asso asss baaa baam baan baas baba babb babm babo babs bama bamb bamm bamn bams bana bann bano bans baon baos basa baso bass bbas bbbb bbbs bmaa bman bnas bnss boab boan boas boba bobb bobo bobs boma bomb boms bona bonn bono bons boob boom boon boos bosa bosm bosn boso boss bsaa bsam bsas bsms bsns bson bsos bssm maaa maam maan maas maba mabo mabs mama mamo mams man- mana mann mano mans maon maos masa masn mass mbam mbas mbba mbbs mbms mbna mmaa mmab mman mmas mmmm mmms mnaa mnam mnas mnba mnbb mnos moaa moab moam moan moas moba mobb mobo mobs moma momo moms mon- mona monn mono mons mooa moob moon moos mosa moso moss msaa msas msba msma msmb msmm msms msoa mson mssa mssm naaa naab naam naan naas naba nabo nabs nama namb namm namo nams nan- nana nanb nann nano nans naos nas- nasa nasb nasm naso nass nbaa nbas nbbo nman nmon nmos nnnn nnos nnsa nnss noaa noam noba nobm nobo nobs nom- noma nomo noms non- nona nonn nono nons noo- noob noon nooo noos nos- nosa nosm noss nsaa nsbm nsbo nsmb nsna nsos nssa nssb nsso nsss oama oams oass oban obas obba obbo obon obos obsn obss omam oman omao omas ombo omma omn- omo- omoa omon omoo omsa omsn onab onam onan onas onna onno onon onos onso ooaa ooba ooma ooms oona oons oooo ooos oosa osam osan osas osba osm- osmo osno osoo osos ossa ossb osso s-os saab saam saan saas saba sabb sabo sabs sam- sama samm samn samo sams sana sanm sann sano sans saon saos sasa sasm saso sass sbaa sbas sbbs sbma sbsa smaa sman smas smba smon smos smsn smss snab snam snas snba snns snoa snob snom snoo snos soam soan soas soba sobo sobs soma somb somm somn somo son- sona sono sons soom soon soos sosa soso soss ssaa ssab ssam ssan ssao ssas ssbn ssns sssa sssb sssm ssss