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_Lah4):
Calculate 9 - 1 + -3.

Question 1 (Question id: q_zPL07S):
Determine the value of y that satisfies: 90*y - 270 = 1530 Respond with an integer.

Question 2 (Question id: q_7WUsG):
Find the value of a in the equation: 19*a - 20 = 170 Respond with an integer.

Question 3 (Question id: q_yUO0):
Calculate 0 * -5.

Question 4 (Question id: q_6dwh):
Determine the value of h that satisfies: 16*h + 15 = 79 Respond with an integer.

Question 5 (Question id: q_msYpt1):
Determine the value of e that satisfies: e + 19 = 39 Respond with an integer.

Question 6 (Question id: q_JiS6nt):
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: "changes"

Question 7 (Question id: q_uzB3aD):
Find the value of p in the equation: 8*p - 6 = 2 Respond with an integer.



Return a JSON with each question id as a key.

For every question id, supply an object whose 'answer' field stores the solution.
Include an 'answer_type' field (value 'string' or 'integer') for every answer object.
For even integers, nest 'half_answer' and 'double_answer' inside an additional 'additional_answer_info' field in the answer object.
If the response to a question is a string, add a 'first_char' field containing its first character.
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_Lah4": {"answer": 5, "answer_type": "integer"}, "q_zPL07S": {"answer": 20, "answer_type": "integer", "additional_answer_info": {"half_answer": 10, "double_answer": 40}}, "q_7WUsG": {"answer": 10, "answer_type": "integer", "additional_answer_info": {"half_answer": 5, "double_answer": 20}}, "q_yUO0": {"answer": 0, "answer_type": "integer", "additional_answer_info": {"half_answer": 0, "double_answer": 0}}, "q_6dwh": {"answer": 4, "answer_type": "integer", "additional_answer_info": {"half_answer": 2, "double_answer": 8}}, "q_msYpt1": {"answer": 20, "answer_type": "integer", "additional_answer_info": {"half_answer": 10, "double_answer": 40}}, "q_JiS6nt": {"answer": "s", "answer_type": "string", "first_char": "s", "original_string": "changes"}, "q_uzB3aD": {"answer": 1, "answer_type": "integer"}}}