Assertion: torpedo buoy | /r/ObjectUse | used as surface marker buoys
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: The torpedo buoys used by lifesavers are sometimes used as surface marker buoys as they are visible, tough, available, and reasonably low drag.
text: The torpedo buoys used by lifesavers are sometimes used as surface marker buoys as they are visible, tough, available, and reasonably low drag.