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_MxSnBxL):
Calculate -5 - -7 + 3.

Question 1 (Question id: q_DxgYy1sj):
Calculate ( -6 + 8 ) / 1.

Question 2 (Question id: q_RHoTi):
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: "alive"



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 last-character tasks, provide 'original_string' alongside the answer.

Add a top-level 'global_metadata' field that records overall stats:
'num_questions_asked' should equal the total questions that appeared.

Now provide the result JSON using the described format.

{"ground_truth": {"q_MxSnBxL": {"answer": 5}, "q_DxgYy1sj": {"answer": 2, "additional_answer_info": {"half_answer": 1, "double_answer": 4}}, "q_RHoTi": {"answer": "e", "original_string": "alive"}, "global_metadata": {"num_questions_asked": 3}}}