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_ApLr):
Find the value of b in the equation: 6 - 2*b = -30 Respond with an integer.

Question 1 (Question id: q_jnnXtb):
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: "things"



Return a JSON with each question id as a key.

Each key’s value must be an object holding an 'answer' field.
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.
If the question asks for the last character of a string, add an 'original_string' field containing the source string.

Add a top-level 'global_metadata' field that records overall stats:
Set 'num_questions_asked' to the count of questions originally displayed.
Provide 'questions_with_integer_answers', listing ids with integer answers (or [] if no integers).

Now provide the result JSON using the described format.

{"ground_truth": {"q_ApLr": {"answer": 18, "answer_type": "integer", "additional_answer_info": {"half_answer": 9, "double_answer": 36}}, "q_jnnXtb": {"answer": "s", "answer_type": "string", "original_string": "things"}, "global_metadata": {"num_questions_asked": 2, "questions_with_integer_answers": ["q_ApLr"]}}}