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_lrhcf):
How many times does the letter "i" appear in the text: "appeared in"? Respond with an integer.

Question 1 (Question id: q_HOw55):
How many times does the letter "r" appear in the text: "requests of"? Respond with an integer.

Question 2 (Question id: q_9tN9):
Find the value of v in the equation: 8 - 9*v = -10 Respond with an integer.

Question 3 (Question id: q_zafo0J):
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: "things"



Output JSON where all question ids are keys, omitting q_9tN9.

Each key’s value must be an object holding an 'answer' field.
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_HOw55": {"answer": 1}, "q_zafo0J": {"answer": "s", "first_char": "s"}, "q_lrhcf": {"answer": 1}}}