Why is my position 1 not defined in the loop?

Why is my position_1 not defined in the loop but it is in the menu_position object and it is also in the normal alert call. What’s wrong here? I ran this code in FireFox if that makes any difference

let position_Name = prompt('Enter position name please', 'Coffee');
let price = prompt('Enter price on this position', '3$');


let menu_position = {
    position_1: {
        position_Name,
        price
    }

};
alert(menu_position.position_1.price);
let position_Name2 = prompt('Enter position name please', 'Steak');
let price2 = prompt('Enter price on this position please', '10$');

menu_position.position_2 = {position_Name2, price2};

let question = prompt('Select position please (position_1, position_2)', 'position_1');

alert(menu_position.position_1.position_Name)
if (question == position_1){
    alert(menu_position.position_1.position_Name)
}