Assertion: pulsar | /r/HasProperty | crushed core of a massive star
Facets:
Source sentences:
text: A pulsar is the crushed core of a massive star that ran out of fuel, collapsed under its own weight and exploded as a supernova.
text: A pulsar is the crushed core of a massive star that ran out of fuel, collapsed under its own weight and exploded as a supernova.
text: A pulsar is the crushed core of a massive star that ran out of fuel, collapsed under its own weight and exploded as a supernova.