{
  "content": "  It looks like you are trying to parse a term using the `parse` function, but the term you are trying to parse contains an unknown term head `ctor`.\n\nThe `parse` function expects the term to be in a specific format, which is described in the error message. The term head `ctor` is not recognized by the `parse` function, and it expects one of the following term heads: `app`, `tail-app`, `lam`, `let`, `let-rec`, `if`, `match`, `do`, `tail-do`, `seq`, `term-ctor`, `clone`, `reuse-as`, `lit-unit`.\n\nTo fix the error, you need to make sure that the term you are trying to parse is in the correct format. You can do this by checking the documentation for the `parse` function and making sure that your term is in the correct format. If you are still having trouble, you can try using the `parse-term` function instead, which is a more flexible function that can parse terms in a wider range of formats.",
  "usage": {
    "completion_tokens": 230,
    "prompt_tokens": 7675,
    "total_tokens": 7905
  }
}