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_jdJTzduv):
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: "brains"

Question 1 (Question id: q_dWIciQjW):
How many times does the letter "e" appear in the text: "protected by"? Respond with an integer.

Question 2 (Question id: q_R2sSZ):
Determine the value of u that satisfies: -19*u - 2 = -59 Respond with an integer.



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'.
Include an 'answer_type' field (value 'string' or 'integer') for every answer 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.
For string answers, include 'first_char' with the answer’s initial letter.
For last-character tasks, provide 'original_string' alongside the answer.

Now provide the result JSON using the described format.

{"ground_truth": {"q_jdJTzduv": {"answer": "s", "answer_type": "string", "first_char": "s", "original_string": "brains"}, "q_dWIciQjW": {"answer": 2, "answer_type": "integer", "half_answer": 1}, "q_R2sSZ": {"answer": 3, "answer_type": "integer"}}}