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_mrRb):
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: "it"

Question 1 (Question id: q_5LAP2w):
Calculate 8 * 2.

Question 2 (Question id: q_ooecYH):
Calculate 3 + 5.



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).
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_mrRb": {"answer": "t", "first_char": "t"}, "q_5LAP2w": {"answer": 16, "additional_answer_info": {"half_answer": 8, "double_answer": 32}}, "q_ooecYH": {"answer": 8, "additional_answer_info": {"half_answer": 4, "double_answer": 16}}}}