b-u bbb bbe bbg bbi bbu be- beb bee beg bei beu bgb bge bgg bgi bgu bi- bib bie big bii biu bub bue bug bui buu ebb ebe ebg ebi ebu eeb eee eeg egb ege egg egi egu eib eie eig eii eiu eu- eub eue eug eui gbe gbg gbi gbu ge- geb gee geg gei geu ggb ggg ggi ggu gib gie gig gii giu gu- gub gue gug gui guu ibb ibe ibg ibi ibu ie- iee ieg iei igb ige igg igi igu iib iie iii iiu iu- iub iue iug iui ubb ube ubg ubi ubu ueb uee ueg uei ugb uge ugg ugi ugu uib uie uig uii uiu uue uug uuu