-ey eee eef eeo eep eet eey ef- efe eff efo efp eft eo- eoe eof eoo eop eot ep- epe epf epo epp ept ete etf eto etp ett ety eye eyo eyp eyt fee fef feo fep fet fey ffe fff ffo ffp fft ffy foe fof foo fop fot foy fpe fpo fpp fpt fpy fte ftf fto ftp ftt fty fy- fye fyo fyp oee oef oeo oep oet oey of- ofe off ofo ofp oft oo- oof ooo oop oot op- ope opf opo opp opt opy ot- ote otf oto otp ott oye oyo p-p pee pef peo pep pet pey pfe pff pfo pfp pft pfy poe pof poo pop pot poy ppe ppf ppo ppp ppt pt- pte ptf pto ptp ptt pty py- pye pyf pyo pyt te- tee tef teo tep tet tey tfe tff tfo tfp tft to- toe tof too top tot toy tpe tpf tpo tpp tpt tte ttf tto ttp ttt tty tye tyf tyo typ tyt yee yef yeo yep yet yey yfe yff yft yoe yof yoo yop yot yoy ypf ypo yte ytf yto ytp ytt yye yyf yyt yyy