a-ak aaaa aaab aaad aaap aaar aaba aabb aabd aabp aada aaka aapa aara aard aarp abaa abab abad abak abap abar abb- abba abbb abbr abda abpa abpd abpp abpr abra adaa adab adad adak adap adar adba adda addd addr adp- adra akaa akap akar akka akr- akra apak apap apar apba apbr apda apdd appa appd appr apra arab arad arak arap arar arba arda arka arpa arr- arra arrk arrr baaa baad baak baar baba babb babr bada badb badd badr bak- baka bakr bapa bapp bar- bara barb bard bark barr bbad bbbb bbdd bbpr bd-r bkpr bpda bprd brab brad brak brda brka brkb brrr daab daad daap daar daba dabb dabp dada daka dapa dapp dara darb dard dark darp darr dbar dbpd dddd dkba dpaa dppa dprk draa drab drad drak drap drar drba drda drra kaaa kaab kaak kaap kaar kaba kabb kabd kabr kad- kada kadd kadr kaka kakk kap- kapa kapp kara karb kard kark karp karr kbaa kbab kbad kbak kbap kbar kbba kbbb kbbd kbbk kbbr kbdb kbdr kbkb kbkk kbkr kbpa kbpk kbpr kbra kbrb kbrd kbrk kdaa kdab kdad kdak kdap kdar kdbb kdbr kddb kddd kddk kddr kdka kdkb kdkd kdkk kdkr kdpr kdrb kkaa kkap kkar kkba kkbb kkbd kkbr kkda kkdd kkkk kkpk kkrb kkrk kkrr kpad kpak kpar kpba kpbb kpbd kpbr kpda kpdb kpdr kpkk kpkr kppd kppk kppp kppr kprb kprd kprk kprp kprr krab krad krak krap krar krba krbb krbd krbk krbr krda krdd krdr krka krkd krkk krkr krpa krpr krrb krrk krrr paak paap paar paba pada padd paka papa papb papp papr par- para pard park parp parr pbar pbpa pbpk pdpa pdpr ppad ppap ppar ppdk pppa pppd pppp prad prar prpd prrd raab raad raak raba rabb rabk rada radd radr raka rakk rapa rapd rapp rara rarb rark rbbb rbbr rdap rdbp rpdp rrad rrrr