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_OFcqQJ):
Calculate 3 * 3 / 1.

Question 1 (Question id: q_BHedC):
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 2 (Question id: q_8uWoNXPl):
Calculate 5 - 1 * 0.



Produce a JSON object whose top-level keys are the question ids.

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.
If the question asks for the last character of a string, add an 'original_string' field containing the source string.

Now provide the result JSON using the described format.

{"ground_truth": {"q_OFcqQJ": {"answer": 9}, "q_BHedC": {"answer": "w", "first_char": "w", "original_string": "how"}, "q_8uWoNXPl": {"answer": 5}}}