a-ya a-yo aaaa aaab aaac aaar aaba aabb aabc aaby aaca aacb aacc aaco aacr aacy aaoo aara aarc aaro abaa abab abac abar abax abay abb- abba abbb abbo abbr abby abca abcb abcc abcr aboa abob aboo abor abox aboy abra abrc abro abry abyc abyy acaa acab acac acar acba acca accc acco accy acoa acor acoy acr- acra acrc acro acrr acry aoba aoca aora aorb arab arac arar arax aray arba arby arc- arca arco aroa arob aroo aror arr- arra arrc arro arrr arry ary- arya axar axo- axoa axxo ay-o ayao ayar ayay ayca ayoo ayra ayry ayya ba-x baaa baar baba babb babo babr baby bac- baca bacc baco bar- bara barb barc baro barr barx bary baya bayo bbay bbbb bbox bboy bbrc bbyo bcaa bcar bcbc bcca bccc bcor bcra boab boac boar boba bobb bobo boby boca boco boob booc boor boox bor- bora boro borr bory boxa boxy boya boyo brab brac brao brax bray brca brcb broa brob broc broo bror brox brrr bry- brya bryo byar byoa byob byoc c-bo caaa caab caac caba cabo caby cac- caca cacc caco cacr caor cara carb carc caro carr carx cary caxa caxy cayo cayr cbac cbar cbax cbbc cbca cbcc cbcr cbox cbry cbxa ccaa ccab ccac ccar ccba ccbc ccca cccb cccc ccob ccoc ccra ccrc coax coba cobb cobo coby coca coco coob cor- cora corb corc coro corr cory coxa coxy coya coyo coyr crab crac crar crax cray crbc crca crcc crcr crob croc croo cror croy cry- crya cryb cryo cxro cxxx cya- cyaa cyar cyba cybb cybc cybo cyc- cyca cycb cycc cyoa cyra cyy- cyyc oara oary obay obba obbo obby obor obox oboy obra obro ocab ocac ocbc occa occc ocra ocro ocrr ooaa ooba ooby oocr oooo oora oory orab orac orao orar oray orba orbb orbo orby orca orco oro- oror oroy orra orro orry orya oryx oxa- oxo- oxox oxxo oxy- raab raba rabb rabo raby rac- raca racc raco racy raob raoc rara rarb raro rary raxa raya rayr rbbb rbbr rcac rcbc rcbo rccb rccc rcyc roab roar rob- roba robb robo roby roca rocc roco roob roor roox rora rorc roro rory roxa roxo roxy roya rrrr ryba ryob xaar xara xbar xbox xbra xobc xoca xoco xoro xoxo xoyo xray xxxo xxxx xxxy xyr- yaar yaba yabo yacc yaco yacy yara yarb yaro yarr yary yaxa yaya yayo ybor ybry ycab ycao yccc yoar yoax yoba yobo yoro yory yoyo yyyy