Assertion: nebula's gas | /r/HasProperty | excited by the shock collision
Facets:
value: at an earlier time
type: TEMPORAL
Source sentences:
text: The red glow is from cooler gas that was excited by the shock collision at an earlier time and has subsequently diffused into a more chaotic structure.
text: The red glow is from cooler gas that was excited by the shock collision at an earlier time and has subsequently diffused into a more chaotic structure.