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_Cx5SFW):
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: "of"

Question 1 (Question id: q_yiJxd):
Calculate -5 * 0.

Question 2 (Question id: q_3gG4HD):
Your task is to count how many legs there are in total when given a list of animals.

Now, how many legs are there in total if you have 2 sea slugs, 3 snakes, 2 fireflys, 2 elephants?
 Respond with an integer.



Output JSON where all question ids are keys, omitting q_Cx5SFW.

For every question id, supply an object whose 'answer' field stores the solution.
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.

Now provide the result JSON using the described format.

{"ground_truth": {"q_yiJxd": {"answer": 0, "answer_type": "integer", "half_answer": 0}, "q_3gG4HD": {"answer": 20, "answer_type": "integer", "half_answer": 10}}}