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_My6rFPK):
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: "decisions"

Question 1 (Question id: q_SLyQ09):
Calculate ( -2 - 3 * -7 ).



Output JSON where all question ids are keys, omitting q_My6rFPK.

Each key’s value must be an object holding an 'answer' field.
Include an 'answer_type' field (value 'string' or 'integer') for every answer object.
For even integer answers, include 'half_answer' equal to answer ÷ 2.
For string answers, include 'first_char' with the answer’s initial letter.

Beyond the question-id fields, add a 'global_metadata' object with summary information:
Include 'num_questions_asked' to record the total number of questions presented.
Record the answered-question count in the field 'num_questions_answered'.
• questions_with_integer_answers – list of question ids whose answers are integers (empty list if none).

Create a 'combined_results' section featuring:
  • integer_info (id → integer answer)
  • sum_of_answers (sum of those integers)

Now provide the result JSON using the described format.

{"ground_truth": {"q_SLyQ09": {"answer": 19, "answer_type": "integer"}, "global_metadata": {"num_questions_asked": 2, "num_questions_answered": 1, "questions_with_integer_answers": ["q_SLyQ09"]}, "combined_results": {"integer_info": {"q_SLyQ09": 19}, "sum_of_answers": 19}}}