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_l3qjwXJD):
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: "careers"

Question 1 (Question id: q_0nvLII):
How many times does the letter "h" appear in the text: "their air"? Respond with an integer.

Question 2 (Question id: q_4Wba):
Solve for d: 378*d = 7560 Respond with an integer.



Produce a JSON object whose top-level keys are the question ids.

The value for each key should be an object that contains the answer in the field 'answer'.
For even integer answers, include 'half_answer' equal to answer ÷ 2.
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_l3qjwXJD": {"answer": "s", "original_string": "careers"}, "q_0nvLII": {"answer": 1}, "q_4Wba": {"answer": 20, "half_answer": 10}}}