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_iz1ohI1I):
How many times does the letter "o" appear in the text: "power for aërial"? Respond with an integer.

Question 1 (Question id: q_DgOZu2Z):
Solve for k: 8*k + 76 = 204 Respond with an integer.

Question 2 (Question id: q_ztS9A6G):
How many times does the letter "h" appear in the text: "same lucky hit"? Respond with an integer.

Question 3 (Question id: q_qylXv):
Find the value of f in the equation: 19 - 16*f = -301 Respond with an integer.



Return a JSON with each question id as a key.

Each key’s value must be an object holding an 'answer' field.
Include an 'answer_type' field (value 'string' or 'integer') for every answer object.
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).
If the response to a question is a string, add a 'first_char' field containing its first character.
If the question asks for the last character of a string, add an 'original_string' field containing the source string.

Now provide the result JSON using the described format.

{"ground_truth": {"q_iz1ohI1I": {"answer": 2, "answer_type": "integer", "additional_answer_info": {"half_answer": 1, "double_answer": 4}}, "q_DgOZu2Z": {"answer": 16, "answer_type": "integer", "additional_answer_info": {"half_answer": 8, "double_answer": 32}}, "q_ztS9A6G": {"answer": 1, "answer_type": "integer"}, "q_qylXv": {"answer": 20, "answer_type": "integer", "additional_answer_info": {"half_answer": 10, "double_answer": 40}}}}