Assertion: paddle steamer | /r/AtLocation | use
Facets:
value: thanks to their shallow draught
type: CAUSE
value: in coastal service
type: LOCATION
Source sentences:
text: In oceangoing service, paddle steamers became much less useful after the invention of the screw propeller, but they remained in use in coastal service and as river tugboats, thanks to their shallow draught and good maneuverability.