Assertion: nebula's gas | /r/HasProperty | star's outer layers
Facets:
Source sentences:
text: The glowing gas is the star's outer layers, expelled over about 2,200 years.
text: The glowing gas is the star’s outer layers, expelled over about 2,200 years.
text: The glowing gas is the star's outer layers, expelled over about 2,200 years.
text: The glowing gas is the star’s outer layers, expelled over about 2,200 years.