Assertion: ship | /r/HasAspect | rudder
Facets:
value: on their centerlines
type: LOCATION
value: usually
type: TEMPORAL
value: for steering
type: PURPOSE
Source sentences:
text: Ships, boats, submarines, dirigibles and aeroplanes usually have a rudder for steering.
text: In the early days of boating, before ships had rudders on their centerlines, boats were controlled using a steering oar.