This program outputs {Master Chief Spartan Protagonist Halo}. How would you get it to output Master Chief - a Spartan - is the Protagonist of Halo instead?

package main
import "fmt"
type Character struct{
        Name  string
        Class string
        Role  string
        Game  string
}
func main() {
        mc := Character{
                Name: "Master Chief",
                Class: "Spartan",
                Role: "Protagonist",
                Game: "Halo",
        }
        fmt.Println(mc)
}