a-ak a-ok aaaa aaac aaar aaca aacc aack aaco aacr aaka aaoo aara aarc aaro acaa acac acar acca accc acco acoa acor acr- acra acrc acro acrr akaa akao akar akca akka akko akok akr- akra aoca aora arac arak arar arc- arca arco arka arko aroa aroo aror aroz arr- arra arrc arrk arro arrr arza arzo aza- azar azaz azca azo- azoo azor azra azza azzo caaa caac cac- caca cacc cack caco cacr caka caor caoz cara carc cark caro carr caza cazo ccaa ccac ccar ccca cccc ccoc ccra ccrc ckac ckck ckco ckoa ckoc ckoo ckor ckrc coak coca cock coco cok- coka coko cook cor- cora corc cork coro corr cozz crac crar crca crcc crcr crcz crkc croc crok croo cror croz czar kaaa kaak kaar kacc kaco kacz kaka kakc kakk kako kaoa kaoc kaok kaor kara kark karo karr karz kaza kazc kazo kazr kazz kcaa kcac kcar kcca kccc kcck kccr kckc kckk kcko kckr kckz kcor kcoz kcrc kcro kcrr kcrz kczo kczz kkaa kkac kkar kkck kkco kkcr kkkk kkoa kkoo kkor kkoz kkrc kkrk kkro kkrr kkrz kkzz koac koak koar koaz koca kock koka kokc kokk koko kokr kokz kooc kook kooo koor kooz kora korc kork koro korr koza kozk kozo kozr krac krak krar kraz krca krcc krco krka krkc krkk krko krkr krkz kroa kroc krok kroo kror kroz krrc krrk krro krrr krrz krza krzk krzr krzz kzar kzaz kzcr kzkr kzkz kzoo kzor kzoz kzrc kzrk kzro kzrr kzrz kzza kzzk kzzo kzzr kzzz oara ocac ocak occa occc ocra ocro ocrr okak okaz okka okko okok okor okra okro ooaa ooak oocr oooo oora orac orak orao orar orca orco orka orko oro- orok oror oroz orra orro orzk orzo ozar raak raaz rac- raca racc rack raco raka rakk raoc raok rara rark raro rarz raza razo razr razz rcac rccc roak roar roca rocc rock roco roka rokk roko rokr rook roor rooz rora rorc rork roro roza rozz rrrr rzka z-ro zaar zaca zack zaka zakk zara zark zaro zarr zaza zcar zoar zoco zoo- zook zora zorc zork zoro zoza zozo zzzz