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_cjfv8oJ):
Determine the value of b that satisfies: 16*b + 18 = 146 Respond with an integer.

Question 1 (Question id: q_gyO9s9jz):
How many times does the letter "r" appear in the text: "other medium a"? Respond with an integer.

Question 2 (Question id: q_1aJsDd):
Calculate ( ( -4 * -1 ) ).

Question 3 (Question id: q_mJBxZuyX):
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: "defeat"

Question 4 (Question id: q_T9qy):
Calculate -6 * -6 + 8.



Create a JSON object keyed by every question id except q_cjfv8oJ.

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, 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.

Now provide the result JSON using the described format.

{"ground_truth": {"q_1aJsDd": {"answer": 4, "answer_type": "integer", "half_answer": 2}, "q_gyO9s9jz": {"answer": 1, "answer_type": "integer"}, "q_mJBxZuyX": {"answer": "t", "answer_type": "string", "first_char": "t"}, "q_T9qy": {"answer": 44, "answer_type": "integer", "half_answer": 22}}}