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_ogD1):
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: "complex"

Question 1 (Question id: q_YmYu2M):
Solve for b: 18*b = 72 Respond with an integer.

Question 2 (Question id: q_LFVmkn):
Calculate 2 * 1 + 1.

Question 3 (Question id: q_RGG1):
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: "does"



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

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_ogD1": {"answer": "x"}, "q_YmYu2M": {"answer": 4, "half_answer": 2}, "q_LFVmkn": {"answer": 3}, "q_RGG1": {"answer": "s"}}}