Assertion: nebula's region | /r/HasProperty | area
Facets:
Source sentences:
text: The white-colored regions are areas where light is emitted by sulfur.
text: The white-colored regions are areas where light is emitted by sulfur.
text: The white-colored regions are areas where light is emitted by sulfur.
text: The white-colored regions are areas where light is emitted by sulfur.