Assertion: castle's ground | /r/HasProperty | uneven
Facets:
Source sentences:
text: Its plan is square, measuring less than 12 by 12 m (39 by 39 ft), and the parapet is 15 m (49 ft) above the keep's base; as the ground is uneven, on the other side it rises 10.5 m (34 ft) above ground level.
text: The ground is uneven and there are a lot of edges that you can trip on.