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_VuJ0486H):
Determine the value of o that satisfies: 18 - 4*o = 6 Respond with an integer.

Question 1 (Question id: q_Ya4E1d):
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: "people"

Question 2 (Question id: q_BnPDmGV):
How many times does the letter "o" appear in the text: "Electro Reckoner"? Respond with an integer.

Question 3 (Question id: q_uRhtK):
How many times does the letter "u" appear in the text: "Project Gutenberg"? Respond with an integer.

Question 4 (Question id: q_tpq7g1):
Solve for u: 16*u + 7 = 39 Respond with an integer.



Return a JSON with each question id as a key.

The value for each key should be an object that contains the answer in the field 'answer'.
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.
For last-character tasks, provide 'original_string' alongside the answer.

Beyond the question-id fields, add a 'global_metadata' object with summary information:
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).

Now provide the result JSON using the described format.

{"ground_truth": {"q_VuJ0486H": {"answer": 3, "answer_type": "integer"}, "q_Ya4E1d": {"answer": "e", "answer_type": "string", "original_string": "people"}, "q_BnPDmGV": {"answer": 2, "answer_type": "integer", "half_answer": 1}, "q_uRhtK": {"answer": 1, "answer_type": "integer"}, "q_tpq7g1": {"answer": 2, "answer_type": "integer", "half_answer": 1}, "global_metadata": {"num_questions_asked": 5, "questions_with_integer_answers": ["q_VuJ0486H", "q_BnPDmGV", "q_uRhtK", "q_tpq7g1"]}}}