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_2gsNL):
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: "deal"

Question 1 (Question id: q_RRVXY):
Find the value of u in the equation: 378*u - 15 = 1119 Respond with an integer.

Question 2 (Question id: q_8HZ2aKUs):
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: "as"



Output JSON where all question ids are keys, omitting q_RRVXY.

For every question id, supply an object whose 'answer' field stores the solution.
For even integer answers, include 'half_answer' equal to answer ÷ 2.
For string answers, include 'first_char' with the answer’s initial letter.
If the question asks for the last character of a string, add an 'original_string' field containing the source string.

Now provide the result JSON using the described format.

{"ground_truth": {"q_2gsNL": {"answer": "l", "first_char": "l", "original_string": "deal"}, "q_8HZ2aKUs": {"answer": "s", "first_char": "s", "original_string": "as"}}}