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_t9BaI8):
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: "questions"

Question 1 (Question id: q_VLAuSJql):
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: "and"

Question 2 (Question id: q_S7jZ):
Calculate ( -1 + 6 * 5 ).



Output JSON where all question ids are keys, omitting q_VLAuSJql.

For every question id, supply an object whose 'answer' field stores the solution.
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_t9BaI8": {"answer": "s", "first_char": "s"}, "q_S7jZ": {"answer": 29}}}