What is an ATV?
An ATV typically refers to an all-terrain vehicle which can take many forms.  The most popular ATV consists of a 4 wheel motorized vehicle which has large low-pressure tires and can carry one or two riders that straddle a seat like a motor cycle.  They are highly maneuverable and often a joy to ride.  Other types of vehicles can be described as ATVs as well.  These include off-road vehicles such as SUVs, Jeeps, buggies and motorcycles with large wheels that can navigate through a variety of difficult terrain much easier that other forms of transportation.
Instruction: What is an ATV?
Context: 
Response: An ATV typically refers to an all-terrain vehicle which can take many forms.  The most popular ATV consists of a 4 wheel motorized vehicle which has large low-pressure tires and can carry one or two riders that straddle a seat like a motor cycle.  They are highly maneuverable and often a joy to ride.  Other types of vehicles can be described as ATVs as well.  These include off-road vehicles such as SUVs, Jeeps, buggies and motorcycles with large wheels that can navigate through a variety of difficult terrain much easier that other forms of transportation.