-er -ey eee eep eer eev eey eie eii eip eir eiv ep- epe epi epp epr ere eri erp err erv ery eve evi evp evr evv evy eye eyp eyr i-v ie- iee iei iep ier iev iey iie iii iip iir ipe ipi ipp ipr ipv ipy ir- ire iri irp irr irv iry ive ivi ivp ivr ivv ivy iye iyr iyy p-p pee pei pep per pev pey pie pii pip pir piv ppe ppi ppp ppr ppv pre pri prp prr prv pry pve pvi pvp pvr pvv py- pye pyr re- ree rei rep rer rev rey rie rii rip rir riv riy rpe rpi rpp rpr rpv rri rrp rrr rve rvi rvp rvr rvv rvy ry- rye ryr ryy v-e vee vei vep ver vey vi- vie vii vip vir viv viy vpe vpi vpp vpr vre vri vrp vrr vry vvi vvr vvv vye vyp yee yei yep yer yev yey yie yii yip yir yre yrp yve yvi yvr yvy yye yyy