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_xvDzg7Ig):
Calculate 8 / 4.

Question 1 (Question id: q_O9DY):
Calculate ( 2 - -8 ).

Question 2 (Question id: q_xfKO90M):
How many times does the letter "i" appear in the text: "a little"? Respond with an integer.

Question 3 (Question id: q_Gz8T4U):
How many times does the letter "o" appear in the text: "difference of"? Respond with an integer.



Return a JSON with each question id (except for q_Gz8T4U) as a key.

Each key’s value must be an object holding an 'answer' field.
If the response to a question is an integer that is even, also add the field 'half_answer' to the object which contains the answer integer divided by two.
For last-character tasks, provide 'original_string' alongside the answer.

Now provide the result JSON using the described format.

{"ground_truth": {"q_O9DY": {"answer": 10, "half_answer": 5}, "q_xvDzg7Ig": {"answer": 2, "half_answer": 1}, "q_xfKO90M": {"answer": 1}}}