Assertion: keel's surface area | /r/HasAspect | the underside of the yacht
Facets:
value: together
type: MANNER
Source sentences:
text: The keel substrate is made from materials such as cast-iron, aluminum, fiberglass, lead, carbon fiber, it will have protruding bolts that bolt through the hull and fasten and a surface area that comes together with the underside of the yacht for bearing onto.