This is a Go program that defines two structs: Person and Address. The Person struct contains fields for a person's name, age, and address. The address field is a pointer to an instance of the Address struct, which contains fields for a street, city, state, and zip code.
In the main function, the program creates a new instance of the Address struct and initializes it with data for a fictional street address. Then creates a new instance of the Person struct and initializes it with data for a fictional person, including a pointer to the Address struct.