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_NQodHadD):
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: "when"

Question 1 (Question id: q_dR5cNJL6):
Calculate 3 * 7.

Question 2 (Question id: q_g77cM):
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 3 scorpions, 3 lobsters, 3 flatworms?
 Respond with an integer.

Question 3 (Question id: q_WJLMr0bw):
How many times does the letter "s" appear in the text: "With this"? Respond with an integer.



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

The value for each key should be an object that contains the answer in the field 'answer'.
Include an 'answer_type' field (value 'string' or 'integer') for every answer object.
For even integers, nest 'half_answer' and 'double_answer' inside an additional 'additional_answer_info' field in the answer object.
For string answers, include 'first_char' with the answer’s initial letter.

Now provide the result JSON using the described format.

{"ground_truth": {"q_NQodHadD": {"answer": "n", "answer_type": "string", "first_char": "n"}, "q_dR5cNJL6": {"answer": 21, "answer_type": "integer"}, "q_g77cM": {"answer": 54, "answer_type": "integer", "additional_answer_info": {"half_answer": 27, "double_answer": 108}}, "q_WJLMr0bw": {"answer": 1, "answer_type": "integer"}}}