How do airplanes fly?
Planes fly because of two forces - thrust and lift. 
Thrust is generated by the engines and moves the plane forward. 
When the wind passes the wings, there is a pressure differential created by the shape of the wings such that there is lift
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: How do airplanes fly?
### Input: 
### Response: Planes fly because of two forces - thrust and lift. 
Thrust is generated by the engines and moves the plane forward. 
When the wind passes the wings, there is a pressure differential created by the shape of the wings such that there is lift