Task: Question Answering
Input (English): How should a line graph be used to display distance and time data for a moving object?  
 (A) The y-axis should be labeled as time, which is the dependent variable. (B) The y-axis should be labeled as distance, which is the independent variable. (C) The x-axis should be labeled as distance, which is the dependent variable. (D) The x-axis should be labeled as time, which is the independent variable.
Output (English): D