Task: Question Answering
Input (English): passage: Four-wheel drive, also called 4×4 (``four by four'') or 4WD, refers to a two-axled vehicle drivetrain capable of providing torque to all of its wheels simultaneously. It may be full-time or on-demand, and is typically linked via a transfer case providing an additional output drive-shaft and, in many instances, additional gear ranges.
 question: is 4x4 the same as 4 wheel drive?
Output (English): Yes