Assertion: quasar | /r/HasProperty | celestial body
Facets:
Source sentences:
text: A quasar or QSO is a celestial body that at first sight looks like a star (i.e., as a point of light), but that turns out to be in the center of a galaxy.
text: They identified a quasar – a celestial body that spews intense radiation out from a black hole – that is