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_WFLYAV4p):
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: "and"

Question 1 (Question id: q_yNTeEpM):
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 woodlouses, 3 shrimps, 4 insects, 4 deers?
 Respond with an integer.

Question 2 (Question id: q_wqYQdGn):
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 insects, 3 lobsters, 3 snakes, 4 ants, 4 shrimps?
 Respond with an integer.

Question 3 (Question id: q_fp9vWBmw):
How many times does the letter "s" appear in the text: "day s"? Respond with an integer.

Question 4 (Question id: q_qXLhwae):
Calculate -8 + 2 * 9.

Question 5 (Question id: q_USRT):
Calculate 3 - -3.

Question 6 (Question id: q_phzg8):
Find the value of a in the equation: 20*a - 15 = 225 Respond with an integer.

Question 7 (Question id: q_EFb1H):
Find the value of x in the equation: 60*x - 220 = 860 Respond with an integer.



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

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, add the field 'additional_answer_info' containing 'half_answer' (answer ÷ 2) and 'double_answer' (answer × 2).
For last-character tasks, provide 'original_string' alongside the answer.

Now provide the result JSON using the described format.

{"ground_truth": {"q_yNTeEpM": {"answer": 98, "answer_type": "integer", "additional_answer_info": {"half_answer": 49, "double_answer": 196}}, "q_WFLYAV4p": {"answer": "d", "answer_type": "string", "original_string": "and"}, "q_EFb1H": {"answer": 18, "answer_type": "integer", "additional_answer_info": {"half_answer": 9, "double_answer": 36}}, "q_USRT": {"answer": 6, "answer_type": "integer", "additional_answer_info": {"half_answer": 3, "double_answer": 12}}, "q_phzg8": {"answer": 12, "answer_type": "integer", "additional_answer_info": {"half_answer": 6, "double_answer": 24}}, "q_wqYQdGn": {"answer": 112, "answer_type": "integer", "additional_answer_info": {"half_answer": 56, "double_answer": 224}}, "q_fp9vWBmw": {"answer": 1, "answer_type": "integer"}}}