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_CVsW8):
How many times does the letter "t" appear in the text: "obtain permission"? Respond with an integer.

Question 1 (Question id: q_P76FUpq6):
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: "but"

Question 2 (Question id: q_Y2wf):
Calculate ( 9 - -4 + 6 ).

Question 3 (Question id: q_Wp6b7b):
Calculate ( -2 - -8 ).



Return a JSON with each question id as a key.

For every question id, supply an object whose 'answer' field stores the solution.
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).

Now provide the result JSON using the described format.

{"ground_truth": {"q_CVsW8": {"answer": 1}, "q_P76FUpq6": {"answer": "t"}, "q_Y2wf": {"answer": 19}, "q_Wp6b7b": {"answer": 6, "additional_answer_info": {"half_answer": 3, "double_answer": 12}}}}