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_BgbtDh):
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: "to"

Question 1 (Question id: q_uTjSiR):
Find the value of r in the equation: 640*r = 3200 Respond with an integer.

Question 2 (Question id: q_IZtPQ8xU):
How many times does the letter "d" appear in the text: "Archive Foundation"? Respond with an integer.



Return a JSON with each question id (except for q_IZtPQ8xU) as a key.

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.
If the response to a question is an integer that is even, also add the field 'half_answer' to the object which contains the answer integer divided by two.
If the question asks for the last character of a string, add an 'original_string' field containing the source string.

Beyond the question-id fields, add a 'global_metadata' object with summary information:
Include 'num_questions_asked' to record the total number of questions presented.
• questions_with_integer_answers: ids of questions with integer replies.

Now provide the result JSON using the described format.

{"ground_truth": {"q_uTjSiR": {"answer": 5, "answer_type": "integer"}, "q_BgbtDh": {"answer": "o", "answer_type": "string", "original_string": "to"}, "global_metadata": {"num_questions_asked": 3, "questions_with_integer_answers": ["q_uTjSiR"]}}}