ф

def solve():
    _ = input()

    events: list[tuple[int, str, str, str]] = []
    for _ in range(3):
        for _2 in range(int(input())):
            event = input()
            data = event.split()
            events.append((int(data[-1]),) + tuple(data[:-1]))
    events.sort()

    messages: dict[int, dict[int, int]] = {}
    total: dict[int, int] = {}
    handle_map: dict[str, int] = {}
    for event in events:
        if event[1] == 'REG':
            _, _, id_, _, handle, _ = event
            id_ = int(id_)
            if handle not in handle_map:
                handle_map[handle] = id_
                messages[id_] = {}
                total[id_] = 0
        elif event[1] == 'CHANGE':
            _, _, handle_1, _, handle_2, _ = event
            if handle_2 not in handle_map:
                handle_map[handle_2] = handle_map[handle_1]
                handle_map.pop(handle_1)
        else:
            _, _, _, handle_1, _, handle_2, _ = event
            id_1, id_2 = handle_map[handle_1], handle_map[handle_2]
            id_1, id_2 = id_2, id_1  # variant 2 version
            if id_2 not in messages[id_1]:
                messages[id_1][id_2] = 0
            messages[id_1][id_2] += 1
            total[id_1] += 1

    stat: list[tuple[int, int, int]] = []
    default = (min(handle_map.values()), 0)
    for id_ in handle_map.values():
        log = messages.get(id_, {})
        top = max(log.items(), key=lambda x: (x[1], -x[0]), default=default)
        stat.append((id_,) + top)
    stat.sort()

    print(len(handle_map))
    for id_, id_top, count_top in stat:
        print(f'{id_} RECEIVED {total[id_]} TOP {count_top} FROM {id_top}')


t = int(input())
for _ in range(t):
    solve()