#include <stdio.h>

typedef struct
{
    int age;
    int height;
    char name[20];
    char father[20];
    char mother[20];
} Horse;

int main()
{
    Horse dobbin = {
        24, 17, "Dobbin", "Trigger", "Flossie"};
    Horse trigger = {
        .age = 30, .height = 15, .name = "Trigger", .mother = "Smith", .father = "Wesson"};
    dobbin.age = 12;
}