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_8xrw):
Calculate 4 / 1.

Question 1 (Question id: q_VPAg):
Solve for q: 17*q + 10 = 231 Respond with an integer.

Question 2 (Question id: q_frI1KzpK):
Find the value of f in the equation: 19 - 16*f = -301 Respond with an integer.

Question 3 (Question id: q_dmPXp):
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: "learn"



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'.
Include an 'answer_type' field (value 'string' or 'integer') for every answer object.
For even integer answers, include 'half_answer' equal to answer ÷ 2.

Now provide the result JSON using the described format.

{"ground_truth": {"q_8xrw": {"answer": 4, "answer_type": "integer", "half_answer": 2}, "q_VPAg": {"answer": 13, "answer_type": "integer"}, "q_frI1KzpK": {"answer": 20, "answer_type": "integer", "half_answer": 10}, "q_dmPXp": {"answer": "n", "answer_type": "string"}}}