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_dj4o):
Determine the value of n that satisfies: 8 - 18*n = -172 Respond with an integer.

Question 1 (Question id: q_TWthZS):
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: "economy"

Question 2 (Question id: q_FrmLXx):
How many times does the letter "s" appear in the text: "sun and to"? Respond with an integer.

Question 3 (Question id: q_Pfn4LAqx):
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: "them"



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

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.
For string answers, include 'first_char' with the answer’s initial letter.
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_dj4o": {"answer": 10, "answer_type": "integer", "half_answer": 5}, "q_TWthZS": {"answer": "y", "answer_type": "string", "first_char": "y", "original_string": "economy"}, "q_FrmLXx": {"answer": 1, "answer_type": "integer"}, "q_Pfn4LAqx": {"answer": "m", "answer_type": "string", "first_char": "m", "original_string": "them"}}}