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_ZYYk):
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: "by"

Question 1 (Question id: q_guMpD):
Your task is to count how many legs there are in total when given a list of animals.

Now, how many legs are there in total if you have 4 leechs, 2 wasps, 3 bees, 2 sea slugs, 2 butterflys?
 Respond with an integer.

Question 2 (Question id: q_TWfh):
How many times does the letter "t" appear in the text: "within 30 days"? Respond with an integer.



Your output must be a JSON mapping every question id to its answer info.

Each key’s value must be an object holding an 'answer' field.
Include an 'answer_type' field (value 'string' or 'integer') for every answer object.
For even integer answers, include 'half_answer' equal to answer ÷ 2.
For last-character tasks, provide 'original_string' alongside the answer.

Now provide the result JSON using the described format.

{"ground_truth": {"q_ZYYk": {"answer": "y", "answer_type": "string", "original_string": "by"}, "q_guMpD": {"answer": 42, "answer_type": "integer", "half_answer": 21}, "q_TWfh": {"answer": 1, "answer_type": "integer"}}}