Here is a set of basic questions producing integer or string outputs. Answer them and format the result precisely with the JSON instructions provided:

Question 0 (Question id: q_fVtjAQX):
Calculate -8 / 1 + 9.

Question 1 (Question id: q_gXTH0ed):
How many times does the letter "r" appear in the text: "had remained"? Respond with an integer.



Produce a JSON object whose top-level keys are the question ids.

The value for each key should be an object that contains the answer in the field 'answer'.
If the response to a question is an integer that is even, add the field 'additional_answer_info' containing 'half_answer' (answer ÷ 2) and 'double_answer' (answer × 2).
For string answers, include 'first_char' with the answer’s initial letter.

Now provide the result JSON using the described format.

{"ground_truth": {"q_fVtjAQX": {"answer": 1}, "q_gXTH0ed": {"answer": 1}}}