Assertion: terrestrial planet's surface | /r/HasAspect | volcano
Facets:
Source sentences:
text: The surfaces of terrestrial planets have mountains, craters, canyons, and volcanoes.
text: The surface of Mars has many volcanoes and valleys, and gets its red color from iron oxide in its soil.
text: The surface is dry and cratered, has volcanoes and canyons Atmosphere is thin; mostly carbon dioxide with some nitrogen