-ey b-p bbb bbe bbi bbo bbp bby be- beb bee bei beo bep bey bi- bib bie bii bio bip biy bob boe boi boo bop boy bpb bpe bpi bpo bpp bpy by- bye byi byo byp ebb ebe ebi ebo ebp eby eeb eee eeo eep eey eib eie eii eio eip eo- eob eoe eoi eoo eop ep- epb epe epi epo epp eye eyo eyp ibb ibe ibi ibo ibp iby ie- iee iei iep iey iib iie iii iio iip io- iob ioe ioi ioo iop ipb ipe ipi ipo ipp ipy iye iyo iyy o-i ob- obb obe obi obo obp oby oeb oee oei oeo oep oey oib oie oii oio oip oo- oob ooi ooo oop op- opb ope opi opo opp opy oye oyi oyo p-p pbb pbe pbi pbo pbp pby peb pee pei peo pep pey pib pie pii pio pip pob poe poi poo pop poy ppb ppe ppi ppo ppp py- pyb pye pyo ybe ybi ybp yby yeb yee yei yeo yep yey yie yii yio yip yob yoe yoi yoo yop yoy ypo yyb yye yyy