Assertion: train wheel | /r/HasAspect | flange
Facets:
value: on one side
type: OTHER
value: to keep the wheels
type: PURPOSE
value: e.g. due to some emergency
type: CAUSE
Source sentences:
text: Train wheels have a flange on one side to keep the wheels, and hence the train, running on the rails when the limits of the geometry-based alignment are reached, e.g. due to some emergency or defect.