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_HUr2FXe):
Calculate ( -9 + 6 ) + 9.

Question 1 (Question id: q_oyOYPo):
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: "is"

Question 2 (Question id: q_HThy2AI):
Solve for f: -4*f - 15 = -31 Respond with an integer.

Question 3 (Question id: q_wbBU):
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 3 deers, 4 butterflys, 3 insects, 2 tigers, 2 ants?
 Respond with an integer.



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.
For last-character tasks, provide 'original_string' alongside the answer.

Now provide the result JSON using the described format.

{"ground_truth": {"q_HUr2FXe": {"answer": 6, "half_answer": 3}, "q_oyOYPo": {"answer": "s", "first_char": "s", "original_string": "is"}, "q_HThy2AI": {"answer": 4, "half_answer": 2}, "q_wbBU": {"answer": 74, "half_answer": 37}}}