Assertion: piano | /r/CapableOf | use an aluminum plate
Facets:
value: during the 1940s
type: TEMPORAL
Source sentences:
text: In an effort to make pianos lighter, Alcoa worked with Winter and Company piano manufacturers to make pianos using an aluminum plate during the 1940s.
text: In an effort to make pianos lighter, Alcoa worked with Winter and Company piano manufacturers to make pianos using an aluminum plate during the 1940s.