Assertion: keel | /r/CapableOf | serve as underwater fluid machine
Facets:
value: on a sailboat
type: LOCATION
Source sentences:
text: On a sailboat, the keel serves as an underwater fluid machine that helps to minimize the lateral motion of the vessel that is under sail, as well as acting as a counterweight to the lateral force that comes from the wind on the sails which can cause it to roll to the side.