Assertion: pulsar | /r/HasProperty | a number of designators
Facets:
Source sentences:
text: Their pulsar was later dubbed CP 1919, and is now known by a number of designators including PSR 1919+21 and PSR J1921
text: The pulsar was later dubbed CP 1919, and is now known by a number of designators including PSR 1919+21, PSR B1919