a-a a-b a-i aaa aab aad aae aag aai aau ab- aba abb abd abe abg abi abu ad- ada adb add ade adg adi adu aea aeb aed aee aeg aei aeu ag- aga agb agd age agg agi agu ai- aia aib aid aie aig aii aiu au- aua aub aud aue aug aui b-u baa bab bad bae bag bai bau bba bbb bbd bbe bbg bbi bbu bda bdb bdd bde bdg bdi bdu be- bea beb bed bee beg bei beu bga bgb bgd bge bgg bgi bgu bi- bia bib bid bie big bii biu bua bub bud bue bug bui buu daa dab dad dae dag dai dau dba dbb dbd dbe dbg dbi dbu dda ddb ddd dde ddg ddi ddu de- dea deb ded dee deg dei deu dga dgd dge dgg dgi dgu di- dia dib did die dig dii diu dua dub dud due dug dui eaa eab ead eae eag eai eau eba ebb ebd ebe ebg ebi ebu ed- eda edb edd ede edg edi edu eea eeb eed eee eeg ega egb egd ege egg egi egu eia eib eid eie eig eii eiu eu- eua eub eud eue eug eui g-d gaa gab gad gae gag gai gau gba gbd gbe gbg gbi gbu gda gdb gdd gde gdi gdu ge- gea geb ged gee geg gei geu gga ggb ggd ggg ggi ggu gia gib gid gie gig gii giu gu- gua gub gud gue gug gui guu i-d ia- iaa iab iad iae iag iai iau iba ibb ibd ibe ibg ibi ibu ida idb idd ide idg idi idu ie- iea ied iee ieg iei iga igb igd ige igg igi igu iia iib iid iie iii iiu iu- iua iub iud iue iug iui ua- uaa uab uad uae uag uai uau uba ubb ube ubg ubi ubu uda udb udd ude udg udi udu uea ueb ued uee ueg uei uga ugb uge ugg ugi ugu uia uib uid uie uig uii uiu uua uue uug uuu