function extractValues(input) {
  // Extract object name
  let start = input.indexOf("object '") + 8;
  let end = input.indexOf("'", start);
  const objectName = input.substring(start, end);

  // Extract field name
  start = input.indexOf("$.") + 2;
  end = input.indexOf("':", start);
  const fieldName = input.substring(start, end);

  // Extract rejected value
  start = input.indexOf("rejected value [") + 16;
  end = input.indexOf("]", start);
  const rejectedValue = input.substring(start, end);

  return { objectName, fieldName, rejectedValue };
}

// Extract values from the string
const { objectName, fieldName, rejectedValue } = extractValues(str);