Assertion: helicopter's blade | /r/CapableOf | increase lift
Facets:
value: in the back
type: LOCATION
Source sentences:
text: Roll and pitch are controlled via cyclic control, this changes the angle of each of the rotating blades in cycles; to pitch forward, the blades at the front are reduced in angle, whilst the blades in the rear are increased, increasing lift in the back and decreasing it in the front.