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_iZl8b):
How many times does the letter "n" appear in the text: "has obtained"? Respond with an integer.

Question 1 (Question id: q_5LGDRj3):
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: "of"

Question 2 (Question id: q_MaiCGHy):
Calculate ( 6 + 6 ) + -1.

Question 3 (Question id: q_Yp21):
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: "this"



Your output must be a JSON mapping every question id to its answer info.

For every question id, supply an object whose 'answer' field stores the solution. Additionally, if the task is about counting legs of animals or counting letters in a string, add the task_type field with value 'leg_counting' or 'letter_counting', respectively.
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.

Beyond the question-id fields, add a 'global_metadata' object with summary information:
• num_questions_asked: how many questions were asked in total.
Add 'num_questions_answered' showing how many questions you answered.

Now provide the result JSON using the described format.

{"ground_truth": {"q_iZl8b": {"answer": 1, "task_type": "letter_counting"}, "q_5LGDRj3": {"answer": "f", "original_string": "of"}, "q_MaiCGHy": {"answer": 11}, "q_Yp21": {"answer": "s", "original_string": "this"}, "global_metadata": {"num_questions_asked": 4, "num_questions_answered": 4}}}