Assertion: water ski | /r/MadeOf | either fiberglass
Facets:
Source sentences:
text: Today's water skis are made from either fiberglass, graphite, carbon fiber, or a compound of two or more of these materials.
text: Water skis are made of wood, aluminum, fibreglass, or other materials.
text: Today's water skis are made from either fiberglass, graphite, carbon fiber, or a compound of two or more of these materials.