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_7CVLw):
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: "ancestors"

Question 1 (Question id: q_RvHPW):
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: "for"

Question 2 (Question id: q_yASmq):
Calculate -2 * -4.

Question 3 (Question id: q_N7HUJq0K):
How many times does the letter "i" appear in the text: "daily audience which"? Respond with an integer.



Output JSON where all question ids are keys, omitting q_7CVLw.

Each key’s value must be an object holding an 'answer' field. Additionally, if the task is about counting legs of animals or counting letters in a string, add the task_type field with value 'leg_counting' or 'letter_counting', respectively.
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_yASmq": {"answer": 8, "half_answer": 4}, "q_RvHPW": {"answer": "r", "first_char": "r", "original_string": "for"}, "q_N7HUJq0K": {"answer": 3, "task_type": "letter_counting"}}}