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_BcKvoDm):
Determine the value of d that satisfies: 12*d + 15 = 111 Respond with an integer.

Question 1 (Question id: q_pQGxM1):
Find the value of l in the equation: 10 - 5*l = -45 Respond with an integer.

Question 2 (Question id: q_0vgCW):
How many times does the letter "c" appear in the text: "a physical medium"? Respond with an integer.

Question 3 (Question id: q_rAv3):
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: "and"



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

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 integer answers, include 'half_answer' equal to answer ÷ 2.

Add a top-level 'global_metadata' field that records overall stats:
• num_questions_asked – total number of questions originally shown.

Now provide the result JSON using the described format.

{"ground_truth": {"q_BcKvoDm": {"answer": 8, "answer_type": "integer", "half_answer": 4}, "q_pQGxM1": {"answer": 11, "answer_type": "integer"}, "q_0vgCW": {"answer": 1, "answer_type": "integer"}, "q_rAv3": {"answer": "d", "answer_type": "string"}, "global_metadata": {"num_questions_asked": 4}}}