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_EAvVj):
Solve for a: 155 - 8*a = 131 Respond with an integer.

Question 1 (Question id: q_acMrije):
Calculate 1 / 1.



Create a JSON object keyed by every question id except q_EAvVj.

The value for each key should be an object that contains the answer in the field 'answer'.
Also add the answer type as 'string' or 'integer' to the field 'answer_type' for each 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.
If the question asks for the last character of a string, add an 'original_string' field containing the source string.

Now provide the result JSON using the described format.

{"ground_truth": {"q_acMrije": {"answer": 1, "answer_type": "integer"}}}