#include "widget.h" int main() { Widget W("W", "abc"); Widget X("X", "def"); Widget Y("Y", "ghi"); Widget Z("Z", "jkl"); const Widget clone(Y); W = X; X.setValue("123"); cout << X << endl; Z.extract(cin); cout << Z << endl; Z.extract(cin); X = Y = Z; cout << clone << endl; // STATEMENT TO BE INSERTED HERE return 0; }