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_Ioc6C):
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: "reproduce"

Question 1 (Question id: q_EmJKA8):
Calculate ( -1 + 7 ) + 7.

Question 2 (Question id: q_WAHM5uL):
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"

Question 3 (Question id: q_qa8CZ):
How many times does the letter "e" appear in the text: "called to"? Respond with an integer.



Return a JSON with each question id (except for q_Ioc6C) as a key.

Each key’s value must be an object holding an 'answer' field.
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).

Beyond the question-id fields, add a 'global_metadata' object with summary information:
Set 'num_questions_asked' to the count of questions originally displayed.

Now provide the result JSON using the described format.

{"ground_truth": {"q_WAHM5uL": {"answer": "d"}, "q_qa8CZ": {"answer": 1}, "q_EmJKA8": {"answer": 13}, "global_metadata": {"num_questions_asked": 4}}}