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_OKjRbngZ):
Calculate 2 * 0 / 2.

Question 1 (Question id: q_tbBhZg):
Calculate ( ( ( -5 - -9 ) ) ).

Question 2 (Question id: q_xdPW8qq):
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: "should"



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

The value for each key should be an object that contains the answer in the field 'answer'.
Include an 'answer_type' field (value 'string' or 'integer') for every answer object.
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 string answers, include 'first_char' with the answer’s initial letter.

Now provide the result JSON using the described format.

{"ground_truth": {"q_OKjRbngZ": {"answer": 0, "answer_type": "integer", "half_answer": 0}, "q_tbBhZg": {"answer": 4, "answer_type": "integer", "half_answer": 2}, "q_xdPW8qq": {"answer": "d", "answer_type": "string", "first_char": "d"}}}