Assertion: bronze's copper | /r/HasProperty | the color of copper oxide
Facets:
Source sentences:
text: When copper is oxidized by air or water, it turns green (the color of "copper oxide"), and falls apart.
text: When copper is oxidized by air or water, it turns green (the color of "copper oxide"), and falls apart.
text: When copper is oxidized by air or water, it turns green (the color of "copper oxide"), and falls apart.
text: When copper is oxidized by air or water, it turns green (the color of "copper oxide"), and falls apart.