Assertion: comet | /r/HasProperty | halley
Facets:
Source sentences:
text: A comet was recorded in ancient Greece between 468 and 466 BC; its timing, location, duration, and associated meteor shower all suggest it was Halley.
text: Comets, Halley's in particular, are old friends of the human race and their regular appearances in the inner solar system are thought to have been noted in humanity's earliest records.
text: A comet was recorded in ancient Greece between 468 and 466 BCE; its timing, location, duration, and associated meteor shower all suggest it was Halley.