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_uIS5f2):
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: "fewer"

Question 1 (Question id: q_tc6SClm):
Calculate ( ( ( 8 + 7 ) ) - 2 ).



Return a JSON with each question id as a key.

For every question id, supply an object whose 'answer' field stores the solution.
Include an 'answer_type' field (value 'string' or 'integer') for every answer object.
For even integers, nest 'half_answer' and 'double_answer' inside an additional 'additional_answer_info' field in the answer object.

Now provide the result JSON using the described format.

{"ground_truth": {"q_uIS5f2": {"answer": "r", "answer_type": "string"}, "q_tc6SClm": {"answer": 13, "answer_type": "integer"}}}