C#LINQ过滤列表

我试图通过一个例子来理解它,但我需要一些帮助.

我创建了一个类“Person”：

class Person
{
    private String name { get; set; }
    private int age { get; set; }
    private bool parent { get; set; }
    private bool child { get; set; }

    public Person(String name,int age,bool parent,bool child)
    {
        this.name = name;
        this.age = age;
        this.parent = parent;
        this.child = child;
    }
}

我创建了一个“人物”列表：

people.Add(new Person("Joel",12,false,truE));
        people.Add(new Person("jana",22,falsE));
        people.Add(new Person("Stefan",45,true,falsE));
        people.Add(new Person("Kurt",25,falsE));
        people.Add(new Person("Sebastian",65,falsE));
        people.Add(new Person("George",14,truE));
        people.Add(new Person("Noel",50,falsE));

现在我想把所有被设定为父母的人都赶出去.
但我被困在这里：

var parents = people.Where()