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_ACw8):
How many times does the letter "a" appear in the text: "Piano Electro"? Respond with an integer.

Question 1 (Question id: q_npfG):
Determine the value of d that satisfies: 12*d + 15 = 111 Respond with an integer.

Question 2 (Question id: q_4VQE6v1):
Calculate -3 - 8 * -5.



Return a JSON with each question id as a key.

Each key’s value must be an object holding an 'answer' field. Additionally, if the task is about counting legs of animals or counting letters in a string, add the task_type field with value 'leg_counting' or 'letter_counting', respectively.
For even integers, nest 'half_answer' and 'double_answer' inside an additional 'additional_answer_info' field in the answer object.
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_ACw8": {"answer": 1, "task_type": "letter_counting"}, "q_npfG": {"answer": 8, "additional_answer_info": {"half_answer": 4, "double_answer": 16}}, "q_4VQE6v1": {"answer": 37}}}