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_jDFe):
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: "species"

Question 1 (Question id: q_GqeUhczR):
How many times does the letter "t" appear in the text: "a mighty"? Respond with an integer.

Question 2 (Question id: q_rqGpe):
Calculate 4 + -4.



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

Each key’s value must be an object holding an 'answer' field.
Also add the answer type as 'string' or 'integer' to the field 'answer_type' for each object.
For even integers, nest 'half_answer' and 'double_answer' inside an additional 'additional_answer_info' field in the answer object.

Now provide the result JSON using the described format.

{"ground_truth": {"q_rqGpe": {"answer": 0, "answer_type": "integer", "additional_answer_info": {"half_answer": 0, "double_answer": 0}}, "q_GqeUhczR": {"answer": 1, "answer_type": "integer"}}}