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_Cm60R2C):
Determine the value of n that satisfies: 5*n + 21 = 101 Respond with an integer.

Question 1 (Question id: q_OZlfIF):
How many times does the letter "u" appear in the text: "our vital"? Respond with an integer.

Question 2 (Question id: q_Wsqyj4B):
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: "are"

Question 3 (Question id: q_UulpdTJp):
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: "learning"

Question 4 (Question id: q_1axN1W):
Solve for y: 27 - 255*y = -2013 Respond with an integer.

Question 5 (Question id: q_mekySsaK):
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: "economists"

Question 6 (Question id: q_mkC3b):
Calculate ( -5 + 1 + 6 ).



Your output must be a JSON mapping every question id to its answer info.

Each key’s value must be an object holding an 'answer' field.
For even integers, nest 'half_answer' and 'double_answer' inside an additional 'additional_answer_info' field in the answer object.
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_Cm60R2C": {"answer": 16, "additional_answer_info": {"half_answer": 8, "double_answer": 32}}, "q_OZlfIF": {"answer": 1}, "q_Wsqyj4B": {"answer": "e", "original_string": "are"}, "q_UulpdTJp": {"answer": "g", "original_string": "learning"}, "q_1axN1W": {"answer": 8, "additional_answer_info": {"half_answer": 4, "double_answer": 16}}, "q_mekySsaK": {"answer": "s", "original_string": "economists"}, "q_mkC3b": {"answer": 2, "additional_answer_info": {"half_answer": 1, "double_answer": 4}}}}