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_REUW):
Calculate 1 - -7.

Question 1 (Question id: q_jATVnx):
Calculate 9 - 0.

Question 2 (Question id: q_dRta):
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 ducks, 4 grasshoppers, 1 horse, 3 fireflys, 3 cows?
 Respond with an integer.

Question 3 (Question id: q_dMtZ):
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 wasps, 3 snakes, 2 shrimps, 2 crabs?
 Respond with an integer.



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

Each key’s value must be an object holding an 'answer' field.
For even integer answers, include 'half_answer' equal to answer ÷ 2.
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_REUW": {"answer": 8, "half_answer": 4}, "q_jATVnx": {"answer": 9}, "q_dRta": {"answer": 64, "half_answer": 32}, "q_dMtZ": {"answer": 52, "half_answer": 26}}}