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_pi4FVtKn):
Calculate -8 * 4 * -9.

Question 1 (Question id: q_VQd8):
Calculate ( 8 * 5 - -5 ).

Question 2 (Question id: q_a9EGlnnU):
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: "what"



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.
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).
For string answers, include 'first_char' with the answer’s initial letter.

Beyond the question-id fields, add a 'global_metadata' object with summary information:
• num_questions_asked – total number of questions originally shown.
'num_questions_answered' must hold the number of answered questions.
Fill 'questions_with_integer_answers' with the ids of integer-answer questions (leave empty when none).

Now provide the result JSON using the described format.

{"ground_truth": {"q_pi4FVtKn": {"answer": 288, "additional_answer_info": {"half_answer": 144, "double_answer": 576}}, "q_VQd8": {"answer": 45}, "q_a9EGlnnU": {"answer": "t", "first_char": "t"}, "global_metadata": {"num_questions_asked": 3, "num_questions_answered": 3, "questions_with_integer_answers": ["q_pi4FVtKn", "q_VQd8"]}}}