a-ak a-ok aaaa aaab aaap aaba aabb aabp aaka aaoo aapa aapo abaa abab abag abak abap abb- abba abbb abbo aboa abob abok aboo abpa abpp ag-o agag agao agap agba agbo agga agob agog agoo akaa akao akap akka akko akok akpo aoba aokp aopo apak apao apap apba apbg apga apo- apoo apop appa baaa baak baba babb babo baga bagg bago bak- baka bako bapa bapp bbbb bbga bkpg boab boag boak boba bobb bobo boga bogg bogo boka boko boob boog book boop bopa bopp gaap gaba gabb gabo gabp gaga gagg gago gapa gapp gbag gbap gbbo gggg ggpo goba gobo goga gogo goog gook goop gopo gpaa gpgp kaaa kaab kaag kaak kaap kaba kabb kabg kabo kag- kaga kagb kagg kago kaka kakk kako kaoa kaog kaok kap- kapa kapg kapo kapp kbaa kbab kbak kbap kbba kbbb kbbg kbbk kbbo kbga kbgb kbgg kbgo kbkb kbkg kbkk kbko kboa kbob kbok kboo kbpa kbpg kbpk kbpo kgab kgak kgba kgbb kgga kggg kggo kgpg kkaa kkag kkap kkba kkbb kkbg kkbo kkgb kkgo kkkk kkoa kkob kkoo kkpk koab koak koap koba kobb kobk kobo koga kogb kogg kogo koka kokb kokk koko kokp koob koog kook kooo koop kopa kopb kopp kpak kpao kpba kpbb kpbg kpga kpgb kpgg kpkk kpoa kpob kpok kpoo kpop kppk kppo kppp obak obba obbo obkb obok ogb ogba ogoa ogog okak okap okgo okka okko okok okpo ooaa ooak ooba oooo opap opkg opo- oppa oppo paag paak paap paba paga pagb pago paka pako papa papb papg papp pbpa pbpk pgaa poak poba pobo pogg pogo poka poko pook poop pop- popa popo popp ppap ppga ppoa pppa pppo pppp