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_vpH5YAuV):
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_4Ofe):
How many times does the letter "a" appear in the text: "whom I was"? Respond with an integer.



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

The value for each key should be an object that contains the answer in the field 'answer'.
Include an 'answer_type' field (value 'string' or 'integer') for every answer object.
For even integer answers, include 'half_answer' equal to answer ÷ 2.

Add a top-level 'global_metadata' field that records overall stats:
Set 'num_questions_asked' to the count of questions originally displayed.

Now provide the result JSON using the described format.

{"ground_truth": {"q_vpH5YAuV": {"answer": "o", "answer_type": "string"}, "q_4Ofe": {"answer": 1, "answer_type": "integer"}, "global_metadata": {"num_questions_asked": 2}}}