Final kicker: the Brussels “F” that might be an insecure E

{
  "input": {
    "prompt": " Street photo/illustration in Brussels (recognizable but generic European streetscape; avoid identifiable trademarks): a sign where an “F” is circled, but upon closer look it ambiguously resembles an “E” missing a stroke. Include a skeptical bystander squinting and a friend confidently pointing, echoing the joke “lost confidence.” The composition should leave viewers genuinely unsure whether it’s F or E."
  }
}