a-ak a-do a-ok aaaa aaad aaap aaav aada aaka aaoo aapa aapo aava adaa adad adak adao adap adda addd addo adod adok adoo adp- akaa akao akap akka akko akok akpo aokp aopo apak apao apap apda apdd apo- apod apoo apop appa appd avao avda avdp avva avvo daad daap dada dado daka dako dapa dapp dava dddd ddpo doak doap dod- doda dodd dodo doka doko dood dook doop dopa dopo dopp dpaa dppa dvda dvoa kaaa kaak kaap kad- kada kadd kado kadv kaka kakk kako kaoa kaok kap- kapa kapo kapp kava kavo kavp kavv kdaa kdad kdak kdao kdap kdav kddd kddk kdka kdkd kdkk kdko kdok kdov kdva kdvv kkaa kkap kkda kkdd kkdo kkdv kkkk kkoa kkoo kkov kkpk kkvv koak koap koda kodk kodo kodv koka kokk koko kokp kook kooo koop koov kopa kopp kova kovk kovo kpad kpak kpao kpda kpdo kpkk kpoa kpod kpok kpoo kpop kppd kppk kppo kppp kppv kvak kvda kvdp kvoa kvod kvok kvoo kvop kvov kvvp kvvv odda oddd odoo odop odva okak okap okka okko okok okpo ooaa ooak ooda oooo opap opo- oppa oppo ovda ovo- ovod ovoo ovpp paak paap pada padd pado paka pako papa papp pava pavo pdkv pdpa poad poak pod- poda podd podo poka poko pood pook poop pop- popa popo popp povo ppad ppap ppdk ppoa ppod pppa pppd pppo pppp pvda pvpa vaad vada vado vaka vapa vava voad voda vodo voka vovk vvvv