-er -ey eee een eeo eep eer eex eey ehe ehh ehn eho ehp ehr en- ene enh enn eno enp enr eny eo- eoe eoh eon eoo eop eor ep- epe eph epn epo epp epr epx ere erh ern ero erp err ery ex- exe exh exo exp exr exx exy eye eyn eyo eyp eyr he- hee heh hen heo hep her hex hey hhe hhh hhn hho hhp hhr hhy hne hnh hnn hno hny hoe hoh hon hoo hop hor hox hoy hpe hph hpn hpo hpp hpr hpy hr- hre hrh hrn hro hrp hrr hy- hye hyh hyn hyo hyp hyr hyy ne- nee neh nen neo nep ner nex ney nhe nhh nhn nhp nhr nhy nne nnh nnn nno nnp no- noe noh non noo nop nor nox noy npe nph npn npo npp npr nre nrn nro nrp nrr nrx nry nye nyn nyo nyp nyx nyy oee oeh oen oeo oep oer oex oey ohe ohh ohn oho ohp ohr on- one onh onn ono onp onr onx ony oo- ooh oon ooo oop oor oox op- ope oph opn opo opp opr opx opy or- ore orh orn oro orp orr orx ory ox- oxn oxo oxx oxy oye oyo p-p pee peh pen peo pep per pex pey phe phn pho php phr phx phy pn- pne pnh pnn pno pnp pnr pnx pny poe poh pon poo pop por pox poy ppe pph ppn ppo ppp ppr ppx pre prh prn pro prp prr prx pry pxe pxr py- pye pyn pyo pyr pyx re- ree reh ren reo rep rer rex rey rh- rhe rhh rhn rho rhp rhr rnh rnn rno rnp rnr rny roe roh ron roo rop ror rox roy rpe rph rpn rpo rpp rpr rpx rrh rrn rrp rrr rxp rxr ry- rye ryn ryo ryr ryy xee xen xep xer xex xhp xno xon xoo xop xor xox xpe xpn xpo xpp xrx xry xxo xxp xxx xxy xyp xyr xyy yee yeh yen yeo yep yer yex yey yhe yne ynn ynp yny yoe yon yoo yop yor yox yoy ypo yre yrn yro yrp yxe yxy yye yyy