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_7f7aQq):
Calculate 5 + 5 + -5.

Question 1 (Question id: q_AcmsKEiM):
How many times does the letter "l" appear in the text: "populations amounting"? Respond with an integer.

Question 2 (Question id: q_kZOaGQt):
Solve for x: 20*x + 1 = 301 Respond with an integer.

Question 3 (Question id: q_BL15):
Calculate ( ( ( -5 / 1 ) ) - -5 ).



Return a JSON with each question id as a key.

Each key’s value must be an object holding an 'answer' field.
Include an 'answer_type' field (value 'string' or 'integer') for every answer object.
If the response to a question is an integer that is even, add the field 'additional_answer_info' containing 'half_answer' (answer ÷ 2) and 'double_answer' (answer × 2).

Now provide the result JSON using the described format.

{"ground_truth": {"q_7f7aQq": {"answer": 5, "answer_type": "integer"}, "q_AcmsKEiM": {"answer": 1, "answer_type": "integer"}, "q_kZOaGQt": {"answer": 15, "answer_type": "integer"}, "q_BL15": {"answer": 0, "answer_type": "integer", "additional_answer_info": {"half_answer": 0, "double_answer": 0}}}}