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_0TA9ahy):
Calculate 6 + -9 - -7.

Question 1 (Question id: q_R5LrQ):
Calculate 8 / 1.

Question 2 (Question id: q_Ghvoe):
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: "patience"

Question 3 (Question id: q_gI3rCuf):
Calculate ( ( 9 + 4 - 2 ) ).



Return a JSON with each question id as a key.

For every question id, supply an object whose 'answer' field stores the solution.
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.
For last-character tasks, provide 'original_string' alongside the answer.

Now provide the result JSON using the described format.

{"ground_truth": {"q_0TA9ahy": {"answer": 4, "half_answer": 2}, "q_R5LrQ": {"answer": 8, "half_answer": 4}, "q_Ghvoe": {"answer": "e", "original_string": "patience"}, "q_gI3rCuf": {"answer": 11}}}