Assertion: nebula's light | /r/HasProperty | emitted by nitrogen
Facets:
Source sentences:
text: The nebula's outer edges are largely due to light emitted by nitrogen, which marks the coolest gas visible in the picture.
text: The nebula’s reddish outer edges are largely due to light emitted by nitrogen, which marks the coolest gas visible in the Hubble image.
text: The nebula's reddish outer edges are largely due to light emitted by nitrogen, which marks the coolest gas visible in the Hubble image.
text: The nebula's reddish outer edges are largely due to light emitted by nitrogen, which marks the coolest gas visible in the picture.