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_r60N):
How many times does the letter "t" appear in the text: "a half interest"? Respond with an integer.

Question 1 (Question id: q_ZiufSftt):
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: "problems"



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

For every question id, supply an object whose 'answer' field stores the solution.
For even integers, nest 'half_answer' and 'double_answer' inside an additional 'additional_answer_info' field in the answer object.
For string answers, include 'first_char' with the answer’s initial letter.

Now provide the result JSON using the described format.

{"ground_truth": {"q_r60N": {"answer": 2, "additional_answer_info": {"half_answer": 1, "double_answer": 4}}}}