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_2LwEo):
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: "cause"

Question 1 (Question id: q_POKQ):
Solve for i: 18*i + 126 = 432 Respond with an integer.

Question 2 (Question id: q_oksMp):
Find the value of r in the equation: 40*r = 120 Respond with an integer.



Create a JSON object keyed by every question id except q_2LwEo.

Each key’s value must be an object holding an 'answer' field.
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.

Now provide the result JSON using the described format.

{"ground_truth": {"q_POKQ": {"answer": 17}, "q_oksMp": {"answer": 3}}}