-er eee eek een eeo eer ehe ehh ehn eho ehr eke ekh eko ekr en- ene enh enk enn eno enr eo- eoe eoh eok eon eoo eor ere erh erk ern ero err he- hee heh hek hen heo her hhe hhh hhk hhn hho hhr hkh hkk hkn hko hkr hne hnh hnk hnn hno hoe hoh hok hon hoo hor hr- hre hrh hrk hrn hro hrr ke- kee keh kek ken keo ker khe khh khk khn kho khr kke kkh kkk kkn kkr kn- kne knk knn kno knr koe koh kok kon koo kor krk krn kro krr ne- nee neh nek nen neo ner nhe nhh nhk nhn nhr nke nkk nkn nko nkr nne nnh nnk nnn nno no- noe noh nok non noo nor nre nrk nrn nro nrr oee oeh oen oeo oer ohe ohh ohn oho ohr oke okk oko okr on- one onh onk onn ono onr oo- ooh ook oon ooo oor or- ore orh ork orn oro orr re- ree reh rek ren reo rer rh- rhe rhh rhn rho rhr rke rkk rko rnh rnn rno rnr roe roh rok ron roo ror rrh rrk rrn rrr