A computer-based system includes a computer-processable definition of a region in a data set. The system identifies a region of the data set based on the definition of the region, and provides output to a user representing a question and the identified region of the data set. The system may automatically generate an answer to the question based on the question and the data set, and provide output to the user representing the answer. The system may generate the answer based on a subset of the data set, and provide output to the user representing the subset of the data set. The user may provide feedback on the first answer to the system, which the system may use to improve subsequent answers to the same and other questions, and to disable the system's automatic question-answering function in response to disagreement between the user and the system.
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