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_1WVjGcI1):
Calculate 2 - 4 + 7.

Question 1 (Question id: q_vbwVsbCl):
How many times does the letter "l" appear in the text: "will be renamed"? Respond with an integer.



Output JSON where all question ids are keys, omitting q_vbwVsbCl.

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_1WVjGcI1": {"answer": 5}}}