Assertion: moon's surface | /r/HasProperty | covered
Facets:
value: completely
type: DEGREE
value: in an ocean of magma
type: LOCATION
Source sentences:
text: The moon’s surface was once geologically active and covered in an ocean of magma; but today, apart from traces of water ice, the surface is completely covered in dust and rocky debris.
text: the Moon's surface was covered completely during the two-month lunar mapping phase of the mission.