-ana aaaa aaac aaan aaca aacc aacn aaco aact aana aaon aaoo aata aatc aatt ac-t acaa acac acan acat acca accc acco acct acoa acon acot acta actc acto actt ana- anaa anac anan anao anat anax anca ancc anco anct anna anno annt ano- anoa anon anox ant- anta anto antt aoca aono aont aotc at-t at-x ataa atac atan atat atax atca atcc atco atna atno atoc aton atot atta attn atto axan axat axo- axoa axon axto axxo caaa caac caan caat cac- caca cacc caco cana canc cann cano cant cat- cata catc cato catt caxa ccaa ccac ccat ccca cccc ccna ccnc ccoc cctc cctt cnaa cnac cnco cnna cnta cntc coan coat coax coca coco coct con- cona conc conn cono cont coon coot cota cotc cotn coto cott coxa ctan ctca ctot ctta cttn cxxx naaa naac naan naat naca nacc naco nan- nana nann nano nant naoc naot nata natc nato natt natx ncaa ncac ncat ncca nccc nccn ncct ncna ncnc ncoa ncoc ncta nctc nnnn nnot nntn noaa noac noat noco noct non- nona nonn nono nont nonx noo- noon nooo noot not- nota noto nott noxa ntcc ntto ocac ocan ocat occa occc occn occt ocna ocon oct- octa octo onan onat onc- onca onco onct onna onno onon ont- ontc onto ooaa oona oont oooo otac otan oto- oton otoo otta otto oxa- oxan oxna oxo- oxon oxox oxxo taa- taan taat taca tacc taco tact tana tann tano tant tanx taoa tata tato tatt tax- taxa taxo taxt tcca tccc tcnn tcon tctc tnca tncc toan toat toca toco tona tonn tono tooa toon toot tota totc toto tott tox- toxa toxo toxt ttcn tton tttt txaa txcn xact xana xano xcat xcon xoan xoca xoco xoxo xxxo xxxx