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_0c1li):
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: "this"

Question 1 (Question id: q_W4Ds):
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 beetles, 4 jellyfishs, 1 woodlouse, 4 deers, 3 starfishs?
 Respond with an integer.

Question 2 (Question id: q_sBxzAQX):
Calculate 6 + -6 * -9.

Question 3 (Question id: q_v6LZJFxS):
Determine the value of k that satisfies: 30*k + 45 = 165 Respond with an integer.



Return a JSON with each question id as a key.

Each key’s value must be an object holding an 'answer' field.
For even integer answers, include 'half_answer' equal to answer ÷ 2.
If the response to a question is a string, add a 'first_char' field containing its first character.
For last-character tasks, provide 'original_string' alongside the answer.

Add a top-level 'global_metadata' field that records overall stats:
Include 'num_questions_asked' to record the total number of questions presented.
Fill 'questions_with_integer_answers' with the ids of integer-answer questions (leave empty when none).

Now provide the result JSON using the described format.

{"ground_truth": {"q_0c1li": {"answer": "s", "first_char": "s", "original_string": "this"}, "q_W4Ds": {"answer": 69}, "q_sBxzAQX": {"answer": 60, "half_answer": 30}, "q_v6LZJFxS": {"answer": 4, "half_answer": 2}, "global_metadata": {"num_questions_asked": 4, "questions_with_integer_answers": ["q_W4Ds", "q_sBxzAQX", "q_v6LZJFxS"]}}}