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_rftWa1):
Calculate -1 + 9 - 5.

Question 1 (Question id: q_sHOAG):
How many times does the letter "r" appear in the text: "other form"? Respond with an integer.

Question 2 (Question id: q_qtLa):
Your job is to return the last character of a string as a string. For example, the last char of "hello" is "o". Return the last character of the following string: "adapt"



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.
For last-character tasks, provide 'original_string' alongside the answer.

Now provide the result JSON using the described format.

{"ground_truth": {"q_rftWa1": {"answer": 3}, "q_sHOAG": {"answer": 2, "additional_answer_info": {"half_answer": 1, "double_answer": 4}}, "q_qtLa": {"answer": "t", "first_char": "t", "original_string": "adapt"}}}