["region:us"]
[{"name": "id", "dtype": "string"}, {"name": "job_id", "dtype": "string"}, {"name": "images", "list": "string"}, {"name": "tag", "dtype": "string"}, {"name": "question", "dtype": "string"}, {"name": "options", "list": "string"}, {"name": "answer", "dtype": "string"}, {"name": "question_type", "dtype": "string"}]