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_PkUo):
Calculate -4 - 5 * -4.

Question 1 (Question id: q_NKyi):
How many times does the letter "o" appear in the text: "is unprotected"? Respond with an integer.

Question 2 (Question id: q_6Wk00):
How many times does the letter "u" appear in the text: "the U"? Respond with an integer.

Question 3 (Question id: q_XhLNHYW):
Calculate 1 / 1.



Produce a JSON object whose top-level keys are the question ids.

Each key’s value must be an object holding an 'answer' field.
For even integer answers, include 'half_answer' equal to answer ÷ 2.
For string answers, include 'first_char' with the answer’s initial letter.

Now provide the result JSON using the described format.

{"ground_truth": {"q_PkUo": {"answer": 16, "half_answer": 8}, "q_NKyi": {"answer": 1}, "q_6Wk00": {"answer": 1}, "q_XhLNHYW": {"answer": 1}}}