a-a a-b a-c aaa aab aac aan aao aar aax aay ab- aba abb abc abn abo abr abx aby ac- aca acb acc acn aco acr acx acy an- ana anb anc ann ano anr anx any aoa aob aoc aon aoo aor aox ar- ara arb arc arn aro arr arx ary ax- axa axn axo axr axx ay- aya ayc ayn ayo ayr ayx baa bab bac ban bao bar bax bay bba bbb bbc bbn bbo bbr bbx bby bca bcb bcc bcn bco bcr bcx bcy bna bnb bnc bnn bno bnr bnx boa bob boc bon boo bor box boy bra brb brn bro brr brx bry bxb bxn bxo bxx by- bya byc byn byo byr c-- caa cab cac can cao car cax cay cba cbb cbc cbn cbo cbr cbx cby cca ccb ccc ccn cco ccr ccx cn- cna cnb cnc cnn cno cnr cnx cny co- coa cob coc con coo cor cox coy cra crb crc crn cro crr crx cry cxc cxo cxr cxx cya cyb cyc cyn cyo cyr naa nab nac nan nao nar nax nay nba nbb nbc nbn nbo nbr nbx nca ncb ncc ncn nco ncr ncx nna nnb nnc nnn nno no- noa nob noc non noo nor nox noy nra nrb nrc nrn nro nrr nrx nry nxc nya nyc nyn nyo nyx nyy oaa oab oac oan oao oar oax ob- oba obb obc obn obo obr obx oby oc- oca ocb occ ocn oco ocr ocx on- ona onb onc onn ono onr onx ony oo- ooa oob ooc oon ooo oor oox or- ora orb orc orn oro orr orx ory ox- oxa oxb oxc oxn oxo oxx oxy oya oyo ra- raa rab rac ran rao rar rax ray rba rbb rbc rbn rbo rbr rbx rca rcb rcc rcn rco rcr rcx rna rnb rnc rnn rno rnr rny roa rob roc ron roo ror rox roy rra rrb rrc rrn rrr rxr ry- rya ryc ryn ryo ryr ryy xaa xac xan xar xbc xbr xbx xcb xcr xcx xna xnc xno xoa xoc xon xoo xor xox xrc xrx xry xxo xxx xxy xyr xyy yaa yab yac yan yao yar yax yay ybc ybr yby yca ycc yco ycy yna ynn yny yob yoc yon yoo yor yox yoy yra yrc yrn yro yxa yxy yyb yyc yyy

-ana a-ya a-yo aaaa aaab aaac aaan aaar aaba aabb aabc aaby aaca aacb aacc aacn aaco aacr aacy aana aaon aaoo aara aarc aaro abaa abab abac aban abar abax abay abb- abba abbb abbo abbr abby abca abcb abcc abcn abcr aboa abob abon aboo abor abox aboy abra abrc abro abry abyc abyy acaa acab acac acan acar acba acca accc acco accy acoa acon acor acoy acr- acra acrc acro acrr acry ana- anaa anab anac anan anao anar anax anba anbb anbo anca ancc anco ancy anna annb anno anny ano- anoa anon anor anox anoy anrc anya aoba aoca aonb aono aora aorb aorn arab arac aran arar arax aray arba arby arc- arca arco arna arno aroa arob aron aroo aror arr- arra arrc arro arrr arry ary- arya aryn axan axar axo- axoa axon axxo ay-o ayan ayao ayar ayay ayca ayna ayon ayoo ayra ayry ayya ba-x baaa baan baar baba babb babo babr baby bac- baca bacc bacn baco bana banc bann bano banr baon bar- bara barb barc barn baro barr barx bary baya bayo bbay bbbb bbox bboy bbrc bbyo bcaa bcar bcbc bcca bccc bcor bcra bnoc bnor bnrr bnya boab boac boan boar boba bobb bobo boby boca boco bona bonc bonn bono bony boob booc boon boor boox bor- bora born boro borr bory boxa boxy boya boyn boyo brab brac bran brao brax bray brca brcb brna brno broa brob broc bron broo bror brox brrr bry- brya bryn bryo byan byar bync byno byoa byob byoc byon byrn c-bo caaa caab caac caan caba cabo caby cac- caca cacc caco cacr cana canc cann cano cany caor cara carb carc carn caro carr carx cary caxa caxy cayo cayr cbac cbar cbax cbbc cbca cbcc cbcn cbcr cbna cbox cbrn cbry cbxa ccaa ccab ccac ccar ccba ccbc ccbn ccca cccb cccc ccna ccnb ccnc ccnr ccny ccob ccoc ccra ccrc cnaa cnac cnbc cnco cnna cnrc cnrr coan coax coba cobb cobo coby coca coco con- cona conc conn cono cony coob coon cor- cora corb corc corn coro corr cory coxa coxy coya coyn coyo coyr crab crac cran crar crax cray crbc crca crcc crcr crna crob croc cron croo cror croy cry- crya cryb cryn cryo cxro cxxx cya- cyaa cyan cyar cyba cybb cybc cybo cyc- cyca cycb cycc cyn- cyno cyoa cyon cyra cyy- cyyc cyyn naaa naab naac naan naar naba nabc nabo naca nacc naco nan- nana nanb nann nano nany naoc naor nara narc narn naro narr narx nary naya nayo nbaa nbar nbbc nbbo nbca nbcc nbco nboy ncaa ncac ncar ncba ncbc ncca nccc nccn nccr ncna ncnc ncoa ncoc ncor ncra ncrc nnnn noaa noac noba nobc nobo noco non- nona nonn nono nonx noo- noob noon nooo noor nor- nora norb norc norn noro norr nory noxa noya noyo nrab nrca nrna nroc nron nrrc nyaa nyac nyao nycc nyco nycy nyny nyon nyra nyrb nyro oara oary oban obay obba obbo obby obon obor obox oboy obra obro ocab ocac ocan ocbc occa occc occn ocna ocon ocra ocro ocrr onab onan onar onay onby onc- onca onco onna onno onon onor onoy onra onyx ooaa ooba ooby oocr oona oooo oora oory orab orac oran orao orar oray orba orbb orbo orby orca orco orna ornc orno orny oro- oron oror oroy orra orro orry orya oryx oxa- oxan oxna oxo- oxon oxox oxxo oxy- oxyn oyan oyon raab raan raba rabb