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_wnVQik):
Calculate ( ( -9 * -9 ) ).

Question 1 (Question id: q_zbYoZ):
How many times does the letter "t" appear in the text: "who till now"? Respond with an integer.



Your output must be a JSON mapping every question id to its answer info.

Each key’s value must be an object holding an 'answer' field.
For even integer answers, include 'half_answer' equal to answer ÷ 2.

Now provide the result JSON using the described format.

{"ground_truth": {"q_wnVQik": {"answer": 81}, "q_zbYoZ": {"answer": 1}}}