-ey b-p bbb bbe bbi bbo bbp bbt bby be- beb bee bei beo bep bet bey bi- bib bie bii bio bip bit biy bob boe boi boo bop bot boy bpb bpe bpi bpo bpp bpt bpy btb bte bti bto btp btt bty by- bye byi byo byp byt ebb ebe ebi ebo ebp ebt eby eeb eee eeo eep eet eey eib eie eii eio eip eit eo- eob eoe eoi eoo eop eot ep- epb epe epi epo epp ept etb ete eti eto etp ett ety eye eyo eyp eyt ibb ibe ibi ibo ibp ibt iby ie- iee iei iep iet iey iib iie iii iio iip iit io- iob ioe ioi ioo iop iot ipb ipe ipi ipo ipp ipt ipy itb ite iti ito itp itt ity iye iyo iyt iyy o-i ob- obb obe obi obo obp obt oby oeb oee oei oeo oep oet oey oib oie oii oio oip oit oo- oob ooi ooo oop oot op- opb ope opi opo opp opt opy ot- otb ote oti oto otp ott oye oyi oyo p-p pbb pbe pbi pbo pbp pbt pby peb pee pei peo pep pet pey pib pie pii pio pip pit pob poe poi poo pop pot poy ppb ppe ppi ppo ppp ppt pt- ptb pte pti pto ptp ptt pty py- pyb pye pyo pyt tbb tbe tbi tbo tbp tbt te- teb tee tei teo tep tet tey tib tie tii tio tip tit tiy to- tob toe toi too top tot toy tpb tpe tpi tpo tpp tpt ttb tte tti tto ttp ttt tty tye tyo typ tyt ybe ybi ybp yby yeb yee yei yeo yep yet yey yie yii yio yip yit yob yoe yoi yoo yop yot yoy ypo yte yto ytp ytt yyb yye yyt yyy