Assertion: second ball | /r/HasProperty | constructed
Facets:
value: from aluminium
type: OTHER
value: from iron
type: OTHER
Source sentences:
text: The original ball was retired in 1920 in favor of a second design; the second ball remained 5 feet (1.5 m) in diameter, but was now constructed from iron, weighing 400 pounds (180 kg).
text: The second ball was retired in favor of a third design in 1955; again, it maintained the same diameter of its predecessors, but was now constructed from aluminium, and weighed 150 pounds (68 kg).