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_VzGjXdKs):
How many times does the letter "d" appear in the text: "Do not copy"? Respond with an integer.

Question 1 (Question id: q_EB9y1kr):
Calculate 5 - 5 * -3.

Question 2 (Question id: q_OAKku):
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: "living"



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

The value for each key should be an object that contains the answer in the field 'answer'.
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_VzGjXdKs": {"answer": 1}, "q_EB9y1kr": {"answer": 20, "additional_answer_info": {"half_answer": 10, "double_answer": 40}}, "q_OAKku": {"answer": "g"}}}