#include using namespace std; struct node { int l, r, max; node() { l = r = max = 0; } node(int _l, int _r) { l = _l; r = _r; max = 0; } } tr[50005 << 2]; int n, m, x, y, a[50005]; map m1; void pushup(int u) { tr[u].max = max(tr[u << 1].max, tr[u << 1 | 1].max); } void build(int u, int l, int r) { tr[u] = node(l, r); if (l == r) { tr[u].max = a[l]; return; } int mid = l + r >> 1; build(u << 1, l, mid); build(u << 1 | 1, mid + 1, r); pushup(u); } int query(int u, int l, int r) { if (l <= tr[u].l && tr[u].r <= r) { return tr[u].max; } int mid = tr[u].l + tr[u].r >> 1; int s = 0; if (l <= mid) s = max(s, query(u << 1, l, r)); if (r > mid) s = max(s, query(u << 1 | 1, l, r)); return s; } int main() { cin >> n; for (int i = 1; i <= n; i++) { cin >> x >> y; m1[x] = i; a[i] = y; } build(1, 1, n); cin >> m; for (int i = 0; i < m; i++) { cin >> y >> x; if (y >= x) { cout << "false" << endl; continue; } bool exist_x = m1.count(x); bool exist_y = m1.count(y); auto it_x = m1.lower_bound(x); auto it_y = m1.lower_bound(y); if (!exist_x) { if (!exist_y) { cout << "maybe" << endl; } else { if (query(1, m1[y] + 1, (it_x == m1.end() ? (--m1.end())->second : it_x->second - 1)) < a[m1[x]]) { cout << "maybe" << endl; } else { cout << "false" << endl; } } } else { if (exist_y) { if (a[m1[y]] < a[m1[x]]) { cout << "false" << endl; } else if (query(1, m1[y] + 1, m1[x] - 1) >= a[m1[x]]) { cout << "false" << endl; } else if (x - y == m1[x] - m1[y]) { cout << "true" << endl; } else { cout << "maybe" << endl; } } else { if (it_y == m1.end() || query(1, it_y->second, m1[x] - 1) >= a[m1[x]]) { cout << "false" << endl; } else { cout << "maybe" << endl; } } } } return 0; }