Assertion: asteroid belt's object | /r/HasProperty | natural
Facets:
value: in origin
type: OTHER
Source sentences:
text: But astronomers soon discovered the foreign object was natural in origin, and believed to have originated from the star Vega.
text: Most of the planets in the Solar System have secondary systems of their own, being orbited by planetary objects called natural satellites, or moons (two of which, Titan and Ganymede, are larger than the planet Mercury), and, in the case of the four giant planets, by planetary rings, thin bands of tiny particles that orbit them in unison.