# True/false

Ask whether one stated proposition holds.

The API type is `noul`. Write one proposition with a clear meaning for both true and false. Do not include `options` or `levels`.

```json request
{
  "model": "ren-1.1.0",
  "type": "noul",
  "situation": "The customer wrote: Please cancel my subscription before it renews.",
  "question": "Does the customer explicitly request cancellation?",
  "threshold": 0.9
}
```

`probabilities` has `"true"` and `"false"` keys; the probability of true is `probabilities.true`. `choice` is the more probable answer, and `probability` is the probability of that chosen answer.

A low `probabilities.true` can therefore accompany a high `probability` for false. Always read `choice` and `action` before acting; `action: "act"` does not mean the proposition is true.

For missing evidence, ask a separate question or escalate. False should not silently mean both “contradicted” and “unknown” when those require different actions.