#include <iostream>
#include <string>
class Learner {
public:
void learn(const std::string& concept) {
std::cout << "What is " << concept << "?" << std::endl;
std::cout << "Why is it important?" << std::endl;
std::cout << "Why should I learn it?" << std::endl;
std::cout << "When will I use it?" << std::endl;
std::cout << "How does it work?" << std::endl;
std::cout << std::endl;
}
};