a-a a-b a-i aaa aab aad aae aag aai aan aau ab- aba abb abd abe abg abi abn abu ad- ada adb add ade adg adi adn adu aea aeb aed aee aeg aei aen aeu ag- aga agb agd age agg agi agn agu ai- aia aib aid aie aig aii ain aiu an- ana anb and ane ang ani ann anu au- aua aub aud aue aug aui aun b-u baa bab bad bae bag bai ban bau bba bbb bbd bbe bbg bbi bbn bbu bda bdb bdd bde bdg bdi bdu be- bea beb bed bee beg bei ben beu bga bgb bgd bge bgg bgi bgn bgu bi- bia bib bid bie big bii bin biu bna bnb bnd bne bng bni bnn bnu bua bub bud bue bug bui bun buu daa dab dad dae dag dai dan dau dba dbb dbd dbe dbg dbi dbn dbu dda ddb ddd dde ddg ddi ddn ddu de- dea deb ded dee deg dei den deu dga dgd dge dgg dgi dgn dgu di- dia dib did die dig dii din diu dna dnb dnd dne dng dni dnn dua dub dud due dug dui dun eaa eab ead eae eag eai ean eau eba ebb ebd ebe ebg ebi ebn ebu ed- eda edb edd ede edg edi edn edu eea eeb eed eee eeg een ega egb egd ege egg egi egn egu eia eib eid eie eig eii ein eiu en- ena enb end ene eng eni enn enu eu- eua eub eud eue eug eui eun g-d gaa gab gad gae gag gai gan gau gba gbd gbe gbg gbi gbn gbu gda gdb gdd gde gdi gdn gdu ge- gea geb ged gee geg gei gen geu gga ggb ggd ggg ggi ggn ggu gia gib gid gie gig gii gin giu gna gnb gnd gne gni gnn gnu gu- gua gub gud gue gug gui gun guu i-d ia- iaa iab iad iae iag iai ian iau iba ibb ibd ibe ibg ibi ibn ibu ida idb idd ide idg idi idn idu ie- iea ied iee ieg iei ien iga igb igd ige igg igi ign igu iia iib iid iie iii iin iiu in- ina inb ind ine ing ini inn inu iu- iua iub iud iue iug iui n-i naa nab nad nae nag nai nan nau nba nbb nbd nbe nbg nbi nbn nbu nda ndb ndd nde ndg ndi ndn ndu ne- nea neb ned nee neg nei nen neu nga ngb ngd nge ngg ngi ngn ngu nia nib nid nie nig nii nin niu nna nnb nne nng nni nnn nnu nua nub nud nue nug nui nun nuu ua- uaa uab uad uae uag uai uan uau uba ubb ube ubg ubi ubn ubu uda udb udd ude udg udi udn udu uea ueb ued uee ueg uei uen uga ugb uge ugg ugi ugn ugu uia uib uid uie uig uii uin uiu un- una unb und une ung uni unn unu uua uue uug uun uuu