-ey b-u bbb bbe bbi bbo bbu bby be- beb bee bei beo beu bey bi- bib bie bii bio biu biy bob boe boi boo bou boy bub bue bui buo buu buy by- bye byi byo byu ebb ebe ebi ebo ebu eby eeb eee eeo eey eib eie eii eio eiu eo- eob eoe eoi eoo eou eu- eub eue eui eye eyo ibb ibe ibi ibo ibu iby ie- iee iei iey iib iie iii iio iiu io- iob ioe ioi ioo iou iu- iub iue iui iye iyo iyy o-i ob- obb obe obi obo obu oby oeb oee oei oeo oey oib oie oii oio oiu oo- oob ooi ooo ou- oue oui ouo oye oyi oyo ubb ube ubi ubo ubu uby ueb uee uei uey uib uie uii uio uiu uob uoe uoo uue uuu uyi uyo uyu ybe ybi yby yeb yee yei yeo yey yie yii yio yob yoe yoi yoo you yoy yue yui yuo yuu yuy yyb yye yyu yyy