partial alphanumeric_keys
xkb_symbols "cv" {
    include "ru(winkeys)"
    name[Group1]= "Russia - Chuvash";

    key.type[group1]="FOUR_LEVEL";


    key        <AD03> {        [      Cyrillic_u,	Cyrillic_U,
                            0x010004f3,    0x010004f2      ]       };
    key        <AD05> {        [      Cyrillic_ie,     Cyrillic_IE,
                       ebreve,	Ebreve     ]       };
    key        <AC04> {        [      Cyrillic_a,	Cyrillic_A,
                          abreve,  Abreve      ]       };
    key        <AB03> {        [      Cyrillic_es,     Cyrillic_ES,
                            ccedilla,    Ccedilla      ]       };

    include "level3(ralt_switch)"

};