The unlabeled “y = i” on a complex plane

{
  "input": {
    "prompt": " Illustration of a coordinate plane transitioning into a complex plane: x-axis labeled “Re,” y-axis labeled “Im,” with a highlighted point at (0, 1) and a horizontal line indicating the constant value i. The “y=i” label appears as a floating tag with a question mark beside it to convey “mysterious blank label.” Style: sleek, slightly surreal editorial graphic."
  }
}