Assertion: centerboard | /r/HasProperty | lowered
Facets:
value: easily
type: MANNER
Source sentences:
text: Centerboards are another special type of sailboat keel because they can be lowered and raised mechanically.
text: They can be easily lowered or raised by the crew.
text: It is lowered when needed to resist heeling or leeway, and is raised for shallow draft or to lower drag when the boat is running with the wind.