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_xy0d2rqP):
Find the value of l in the equation: l + 6 = 19 Respond with an integer.

Question 1 (Question id: q_d6E1W):
Calculate 9 + 7.

Question 2 (Question id: q_iKlzkJJ):
Calculate 1 + -2 - -2.

Question 3 (Question id: q_XD9fh):
How many times does the letter "d" appear in the text: "meanderings Why"? Respond with an integer.

Question 4 (Question id: q_amzW):
Calculate ( ( ( 3 / 1 ) ) ).

Question 5 (Question id: q_iJDDVC):
Calculate 8 + 8.



Create a JSON object keyed by every question id except q_amzW.

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.
If the response to a question is a string, add a 'first_char' field containing its first character.
For last-character tasks, provide 'original_string' alongside the answer.

Now provide the result JSON using the described format.

{"ground_truth": {"q_d6E1W": {"answer": 16, "half_answer": 8}, "q_iJDDVC": {"answer": 16, "half_answer": 8}, "q_iKlzkJJ": {"answer": 1}, "q_XD9fh": {"answer": 1}, "q_xy0d2rqP": {"answer": 13}}}