At 10 o'clock, a box contains a ball labeled 1. At 10:30, the ball labeled 1 is removed, and balls labeled 2…

At 10 o'clock, a box contains a ball labeled 1. At 10:30, the ball labeled 1 is removed, and balls labeled 2…: a task in TaskCompendium spike examples (Harbor dataset). Return valid XML with the answer text at /answer; do not use Markdown fences.