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_qKXn):
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: "changes"

Question 1 (Question id: q_nTKp):
Find the value of l in the equation: 10 - 5*l = -45 Respond with an integer.

Question 2 (Question id: q_hCEPx):
Calculate 6 + 4.

Question 3 (Question id: q_Y4fSsMT):
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 4 sheeps, 3 ducks, 2 chickens?
 Respond with an integer.



Your output must be a JSON mapping every question id to its answer info.

For every question id, supply an object whose 'answer' field stores the solution.
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.
For last-character tasks, provide 'original_string' alongside the answer.
For animal-leg questions, add 'animal_types': an alphabetically-sorted list of unique animal names in singular form.

Now provide the result JSON using the described format.

{"ground_truth": {"q_qKXn": {"answer": "s", "answer_type": "string", "original_string": "changes"}, "q_nTKp": {"answer": 11, "answer_type": "integer"}, "q_hCEPx": {"answer": 10, "answer_type": "integer", "half_answer": 5}, "q_Y4fSsMT": {"answer": 26, "answer_type": "integer", "half_answer": 13, "animal_types": ["chicken", "duck", "sheep"]}}}