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_KM1ev4):
How many times does the letter "o" appear in the text: "lot of"? Respond with an integer.

Question 1 (Question id: q_IfyN):
Solve for z: 19 - 6*z = 7 Respond with an integer.

Question 2 (Question id: q_M45Z56Yk):
Calculate ( -6 + 8 ) / 1.



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

Each key’s value must be an object holding an 'answer' field.
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.

Now provide the result JSON using the described format.

{"ground_truth": {"q_KM1ev4": {"answer": 2, "additional_answer_info": {"half_answer": 1, "double_answer": 4}}, "q_IfyN": {"answer": 2, "additional_answer_info": {"half_answer": 1, "double_answer": 4}}, "q_M45Z56Yk": {"answer": 2, "additional_answer_info": {"half_answer": 1, "double_answer": 4}}}}