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_TidEcf):
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 1 (Question id: q_BWNG4dQ):
Calculate 8 / 1 + 8.

Question 2 (Question id: q_lrxG):
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: "how"

Question 3 (Question id: q_5CSUHM):
Determine the value of w that satisfies: 13 - 17*w = -259 Respond with an integer.



Return a JSON with each question id as a key.

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

Now provide the result JSON using the described format.

{"ground_truth": {"q_TidEcf": {"answer": "t", "first_char": "t"}, "q_BWNG4dQ": {"answer": 16, "additional_answer_info": {"half_answer": 8, "double_answer": 32}}, "q_lrxG": {"answer": "w", "first_char": "w"}, "q_5CSUHM": {"answer": 16, "additional_answer_info": {"half_answer": 8, "double_answer": 32}}}}