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_gMlru):
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: "humans"

Question 1 (Question id: q_UkSAqtrq):
Calculate 1 - 1.



Return a JSON with each question id as a key.

For every question id, supply an object whose 'answer' field stores the solution.
Also add the answer type as 'string' or 'integer' to the field 'answer_type' for each object.
For even integer answers, include 'half_answer' equal to answer ÷ 2.
If the response to a question is a string, add a 'first_char' field containing its first character.
For last-character tasks, provide 'original_string' alongside the answer.

Add a top-level 'global_metadata' field that records overall stats:
• num_questions_asked – total number of questions originally shown.
• questions_with_integer_answers – list of question ids whose answers are integers (empty list if none).

Now provide the result JSON using the described format.

{"ground_truth": {"q_gMlru": {"answer": "s", "answer_type": "string", "first_char": "s", "original_string": "humans"}, "q_UkSAqtrq": {"answer": 0, "answer_type": "integer", "half_answer": 0}, "global_metadata": {"num_questions_asked": 2, "questions_with_integer_answers": ["q_UkSAqtrq"]}}}