a-a a-b a-q aaa aab aad aan aaq aau ab- aba abb abd abn abq abu ad- ada adb add adn adq adu an- ana anb and ann anq anu aqa aqn au- aua aub aud aun b-u baa bab bad ban baq bau bba bbb bbd bbn bbq bbu bda bdb bdd bdq bdu bna bnb bnd bnn bnu bqd bua bub bud bun buu daa dab dad dan daq dau dba dbb dbd dbn dbq dbu dda ddb ddd ddn ddq ddu dna dnb dnd dnn dnq dqa dqn dua dub dud dun naa nab nad nan nau nba nbb nbd nbn nbu nda ndb ndd ndn ndu nna nnb nnn nnu nua nub nud nun nuq nuu qaa qad qan qau qba qbd qbq qda qdb qnb qnd qqq qqu qu- qua qud ua- uaa uab uad uan uaq uau uba ubb ubn ubu uda udb udd udn udu un- una unb und unn unq unu uua uun uuu