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_mIwwLS6):
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: "climate"

Question 1 (Question id: q_l9len):
How many times does the letter "b" appear in the text: "believed to"? Respond with an integer.

Question 2 (Question id: q_ETfnoYP):
Calculate ( -1 * -4 - 0 ).



Output JSON where all question ids are keys, omitting q_mIwwLS6.

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).
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.
Fill 'questions_with_integer_answers' with the ids of integer-answer questions (leave empty when none).

Attach a 'combined_results' object that contains:
  • integer_info holds all integer answers by id
  • sum_of_answers is their sum

Now provide the result JSON using the described format.

{"ground_truth": {"q_l9len": {"answer": 1}, "q_ETfnoYP": {"answer": 4, "additional_answer_info": {"half_answer": 2, "double_answer": 8}}, "global_metadata": {"num_questions_asked": 3, "questions_with_integer_answers": ["q_l9len", "q_ETfnoYP"]}, "combined_results": {"integer_info": {"q_l9len": 1, "q_ETfnoYP": 4}, "sum_of_answers": 5}}}