peopleMeals = {}
unliked = 0
line = input()
while line != "Stop":
    tokens = line.split("-")
    if tokens[0] == "Like":
        guest = tokens[1]
        meal = tokens[2]
        if guest not in peopleMeals:
            peopleMeals[guest] = []
        if meal not in peopleMeals[guest]:
            peopleMeals[guest].append(meal)
    if tokens[0] == "Unlike":
        guest = tokens[1]
        meal = tokens[2]
        if guest not in peopleMeals:
            print(f"{guest} is not at the party.")
        elif meal not in peopleMeals[guest]:
            print(f"{guest} doesn't have the {meal} in his/her collection.")
        elif meal in peopleMeals[guest]:
            unliked += 1
            print(f"{guest} doesn't like the {meal}.")
            peopleMeals[guest].remove(meal)
    line = input()
for k, v in sorted(peopleMeals.items(), key=lambda x: (-len(x[1]), x[0])):
    print(f"{k}: {', '.join(v)}")
print(f"Unliked meals: {unliked}")