from sys import stdin
input = stdin.readline

Q = int(input())

stack = []
history = []

def reduce_stack(stack):
    changed = 0
    while len(stack) >= 3 and stack[-3:] == ["(", "|", ")"]:
        stack.pop()
        stack.pop()
        stack.pop()
        changed += 1
    return changed

for _ in range(Q):
    query = input().split()

    if query[0] == "1":
        c = query[1]
        stack.append(c)
        removed = reduce_stack(stack)
        history.append((c, removed))
    else:
        c, removed = history.pop()
        for _ in range(removed):
            stack.append("(")
            stack.append("|")
            stack.append(")")
        stack.pop()

    print("Yes" if not stack else "No")