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_SDwlt):
Calculate ( 8 - 2 + -2 ).

Question 1 (Question id: q_XWN3xua):
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: "resources"



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'.
Include an 'answer_type' field (value 'string' or 'integer') for every answer object.
For even integer answers, include 'half_answer' equal to answer ÷ 2.
If the response to a question is a string, add a 'first_char' field containing its first character.

Now provide the result JSON using the described format.

{"ground_truth": {"q_SDwlt": {"answer": 4, "answer_type": "integer", "half_answer": 2}, "q_XWN3xua": {"answer": "s", "answer_type": "string", "first_char": "s"}}}