class_dict = {}


def setter_class(raw_input):
    if len(raw_input) == 1:
        class_dict[raw_input] = [None]
    else:
        name, parents = raw_input.split(' : ')
        if len(parents) > 1:
            parents_list = parents.split(' ')
            class_dict[name] = parents_list
        else:
            class_dict[name] = [parents]


def getter_class(classes_child, classes_parent):
    if None in class_dict[classes_parent]:
        print('No')
    elif classes_child in class_dict[classes_parent]:
        print('Yes')
    elif classes_child == class_dict[classes_parent]:
        print('Yes')
    else:
        for item in class_dict[class_parent]:
            getter_class(classes_child, item)


counter = int(input())
for count in range(counter):
    input_in = input()
    setter_class(input_in)

counter = int(input())
for count1 in range(counter):
    class_child, class_parent = input().split()
    getter_class(class_child, class_parent)