Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

[Q]: Nguyen Van Bay (Born in Lai Vung, 1936) was a jet fighter ace for the Vietnam People's Air Force (North Vietnamese Air Force) during the Vietnam War.
[A]: What was the war that Nguyễn Văn Bảy fought in?


[Q]: The DRG Class 99.19 engines were metre gauge, ten-coupled, superheated, steam locomotives that were employed in the southwestern German state of Wurttemberg from 1927.
[A]: What was the year that DRG Class 99.19 entered service?


[Q]: Driving In America Keep Right The traffic follows the "keep right rule". While driving, drive on the right side of the road. On one-way, multiple lanes road, the right-most lane would be slowest and left-most lane is fastest. Hand Signals Though indicators are used for the purpose of showing which direction you are going, knowing some hand signals is very important and are usually always asked in a driving test. When you want to turn right, you can put your left hand out of the window and point upward. When you want to make a left turn, you can reach your left arm out of the window and point to the left. If you want to slow down or stop, you can just point downward. School Buses Yellow school buses have flashing red lights and stop signs that reach out from the driver's side. The drivers use these warning signals when letting pupils on and off. No matter which side of the road you are traveling on, if you come upon a school bus with its lights flashing and a stop sign used, you must stop. It's the law. Remain stopped until the lights stop flashing or the stop sign is removed. Using the Horn Using horns is not common in America. Actually they are very rarely used. You may use your horn to warn walkers or other drivers of possible trouble or to avoid accidents. Do not use your horn to express anger or complain about other drivers' mistakes or to try to get a slow driver to move faster.
[A]:
Who is the passage most probably written for?