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_452rsj):
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: "mitochondria"

Question 1 (Question id: q_xMqfQsd2):
Calculate 9 / 3.

Question 2 (Question id: q_an1mpHk):
Your task is to count how many legs there are in total when given a list of animals.

Now, how many legs are there in total if you have 1 deer, 3 woodlouses, 3 chickens, 4 beetles, 2 leechs?
 Respond with an integer.

Question 3 (Question id: q_QW2ff):
How many times does the letter "e" appear in the text: "human being out"? Respond with an integer.



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

Each key’s value must be an object holding an 'answer' field.
For even integer answers, include 'half_answer' equal to answer ÷ 2.
For last-character tasks, provide 'original_string' alongside the answer.

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

In addition, add 'combined_results' with:
  • integer_info – object mapping ids to their integer answers
  • sum_of_answers – sum of those integers

Now provide the result JSON using the described format.

{"ground_truth": {"q_452rsj": {"answer": "a", "original_string": "mitochondria"}, "q_xMqfQsd2": {"answer": 3}, "q_an1mpHk": {"answer": 76, "half_answer": 38}, "q_QW2ff": {"answer": 1}, "global_metadata": {"num_questions_asked": 4, "questions_with_integer_answers": ["q_xMqfQsd2", "q_an1mpHk", "q_QW2ff"]}, "combined_results": {"integer_info": {"q_xMqfQsd2": 3, "q_an1mpHk": 76, "q_QW2ff": 1}, "sum_of_answers": 80}}}