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_W4eHspkz):
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: "services"

Question 1 (Question id: q_stulJh):
Determine the value of g that satisfies: -195*g = -3510 Respond with an integer.

Question 2 (Question id: q_FM82u):
How many times does the letter "v" appear in the text: "We have"? Respond with an integer.

Question 3 (Question id: q_PzPj):
Calculate 8 - -9 + -8.



Return a JSON with each question id as a key.

Each key’s value must be an object holding an 'answer' field.
For even integers, nest 'half_answer' and 'double_answer' inside an additional 'additional_answer_info' field in the answer object.

Beyond the question-id fields, add a 'global_metadata' object with summary information:
'num_questions_asked' should equal the total questions that appeared.
• questions_with_integer_answers – list of question ids whose answers are integers (empty list if none).

Now provide the result JSON using the described format.

{"ground_truth": {"q_W4eHspkz": {"answer": "s"}, "q_stulJh": {"answer": 18, "additional_answer_info": {"half_answer": 9, "double_answer": 36}}, "q_FM82u": {"answer": 1}, "q_PzPj": {"answer": 9}, "global_metadata": {"num_questions_asked": 4, "questions_with_integer_answers": ["q_stulJh", "q_FM82u", "q_PzPj"]}}}