-ey a-a a-b aaa aab aae aag aau aav aay ab- aba abb abe abg abu abv aby aea aeb aee aeg aeu aev aey ag- aga agb age agg agu agv agy au- aua aub aue aug auv av- ava avb ave avg avu avy ay- aya aye ayu b-u baa bab bae bag bau bav bay bba bbb bbe bbg bbu bby be- bea beb bee beg beu bev bey bga bgb bge bgg bgu bgv bua bub bue bug buu buy bva bvb bve bvg bvu bvv by- bya bye byg byu eaa eab eae eag eau eav eba ebb ebe ebg ebu ebv eby eea eeb eee eeg eev eey ega egb ege egg egu egy eu- eua eub eue eug euv eva evb eve evg evv evy eya eye gaa gab gae gag gau gav gay gba gbe gbg gbu gbv gby ge- gea geb gee geg geu gev gey gga ggb ggg ggu ggv gu- gua gub gue gug guu guv guy gva gvb gve gvg gvu gy- gya gyb gye ua- uaa uab uae uag uau uav uay uba ubb ube ubg ubu ubv uby uea ueb uee ueg uey uga ugb uge ugg ugu uua uue uug uuu uva uvb uve uvu uvv uyu v-a v-e vaa vab vae vag vau vav vay vba vbg vbv vea veb vee veg veu vey vga vgg vgu vue vug vuv vva vvb vvg vvv vye vyg yaa yab yae yag yau yav yay ybe ybg yby yea yeb yee yeg yev yey yga yua yue yug yuu yuv yuy yva yve yvy yyb yye yyg yyu yyy