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_X6VVt8Fm):
Determine the value of f that satisfies: 10*f - 15 = 95 Respond with an integer.

Question 1 (Question id: q_Y2hYCo):
Calculate 5 + ( -8 * -1 ).

Question 2 (Question id: q_e0GhN):
Solve for q: 14*q + 10 = 206 Respond with an integer.

Question 3 (Question id: q_SfvnG6MQ):
Calculate 2 + 4.



Return a JSON with each question id as a key.

The value for each key should be an object that contains the answer in the field 'answer'.
Also add the answer type as 'string' or 'integer' to the field 'answer_type' for each object.
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.
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_X6VVt8Fm": {"answer": 11, "answer_type": "integer"}, "q_Y2hYCo": {"answer": 13, "answer_type": "integer"}, "q_e0GhN": {"answer": 14, "answer_type": "integer", "half_answer": 7}, "q_SfvnG6MQ": {"answer": 6, "answer_type": "integer", "half_answer": 3}}}