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_UUQ9HzP):
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: "we"

Question 1 (Question id: q_wcBPibD):
How many times does the letter "b" appear in the text: "being here I"? Respond with an integer.

Question 2 (Question id: q_OI4UhHl):
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: "like"

Question 3 (Question id: q_2VrF):
Calculate 4 + ( 9 - -4 ).



Return a JSON with each question id as a key.

The value for each key should be an object that contains the answer in the field 'answer'.
If the response to a question is an integer that is even, add the field 'additional_answer_info' containing 'half_answer' (answer ÷ 2) and 'double_answer' (answer × 2).
If the response to a question is a string, add a 'first_char' field containing its first character.

Add a top-level 'global_metadata' field that records overall stats:
Include 'num_questions_asked' to record the total number of questions presented.

Now provide the result JSON using the described format.

{"ground_truth": {"q_UUQ9HzP": {"answer": "e", "first_char": "e"}, "q_wcBPibD": {"answer": 1}, "q_OI4UhHl": {"answer": "e", "first_char": "e"}, "q_2VrF": {"answer": 17}, "global_metadata": {"num_questions_asked": 4}}}