-ey a-a a-b aaa aab aae aag aao aau aay ab- aba abb abe abg abo abu aby aea aeb aee aeg aeo aeu aey ag- aga agb age agg ago agu agy aoa aob aoe aog aoo aou au- aua aub aue aug auo ay- aya aye ayo ayu b-u baa bab bae bag bao bau bay bba bbb bbe bbg bbo bbu bby be- bea beb bee beg beo beu bey bga bgb bge bgg bgo bgu boa bob boe bog boo bou boy bua bub bue bug buo buu buy by- bya bye byg byo byu eaa eab eae eag eao eau eba ebb ebe ebg ebo ebu eby eea eeb eee eeg eeo eey ega egb ege egg ego egu egy eo- eoa eob eoe eog eoo eou eu- eua eub eue eug eya eye eyo gaa gab gae gag gao gau gay gba gbe gbg gbo gbu gby ge- gea geb gee geg geo geu gey gga ggb ggg ggo ggu goa gob goe gog goo gou goy gu- gua gub gue gug guo guu guy gy- gya gyb gye gyo oaa oab oae oag oao oau ob- oba obb obe obg obo obu oby oea oeb oee oeg oeo oey oga oge ogg ogo ogy oo- ooa oob oog ooo ou- oua oue ouo oya oye oyo ua- uaa uab uae uag uao uau uay uba ubb ube ubg ubo ubu uby uea ueb uee ueg uey uga ugb uge ugg ugo ugu uoa uob uoe uog uoo uua uue uug uuu uyo uyu yaa yab yae yag yao yau yay ybe ybg yby yea yeb yee yeg yeo yey yga ygo yob yoe yog yoo you yoy yua yue yug yuo yuu yuy yyb yye yyg yyu yyy