Assertion: moon's surface | /r/HasProperty | criss-crossed
Facets:
value: by huge canyons
type: LOCATION
Source sentences:
text: The observed surface has patchwork regions of broken terrain, indicating intense geological activity in Miranda's past, and is criss-crossed by huge canyons, believed to be the result of extensional tectonics; as liquid water froze beneath the surface, it expanded, causing the surface ice to split, creating graben.